Inverse Variation Models

Key Questions

• How do you solve inverse variation problems?

  Nice question i had some of these questions for my homework so i shall share them with you.

  So i will do it in a paint pic.
  

  

  Sidharth · 1 · Jan 15 2015
• How is inverse variation used in everyday life?

  Let's say a family husband is working, so if more people works in family, more income for the family. It is an example of direct variation.

  If family has less members, more saving (provided that the family has the same amount of income). More members, less saving ( income is still the same). It is an inverse variation.

  more members work = more earning in family

  more members = less saving in family

  More members is in joint variation to earning and saving.

  1) Direct variation -- as the independent variable increases so does the dependent variable.

  The amount of money a person who is paid hourly makes varies directly with the number of hours worked.

  P=kh where P is the pay, h the number of hours, and k, the proportionality constant, is the hourly wage.

  2) Inverse variation -- as the independent variable increases, the dependent variable decreases or vice versa.

  The worth of a car varies inversely with its age.

  #W=k/a where W # is the worth of a car at age a and k is the proportionality constant.

  3) Joint variation -- the dependent variable varies directly with two or more independent variables.

  The gravitational pull between two objects varies jointly with their masses and inversely with the square of the distance between them.

  #F=g(m_1m_2)/d^2# where g is the gravitational constant.

  Sidharth · 16 · Feb 4 2015
• What are Inverse Variation Models?

  Answer:

  see explanation below;

  Explanation:

  Inverse variation models, is a term used in inverse variation equation..

  for example;

  #x# varies inversely proportional to #y#

  #x prop 1/y#

  #x = k/y#, where #k# is constant

  this then means that, when value #y# increases, value #x# will decrease, since its inversely proportional.

  For more information about Inverse variation model, this video link would aid you; Inverse Variation Model

  Jumbotron · 1 · Mar 29 2018

• What are Inverse Variation Models?
• How do direct and inverse variation differ?
• How do you solve inverse variation problems?
• How is inverse variation used in everyday life?
• How do you find #f(20)#, if #f(x)# varies inversely with #x# and #f(12)=5#?
• How do you find "k" if y varies inversely as x and if #y=24# when #x=3#?
• How do you find y when #x=12# if y is inversely proportional to x and #y=2# when #x=8#?
• If y varies inversely as x, how do you find the constant of variation if #y=36# when #x=9#?
• If y varies directly as x and inversely as the square of z and if #y=20#  when #x=50# and #z=5# how do you find y when #x=3# and #z=6#?  
• If y varies indirectly as the cube of x, and k is the constant variation, how do you find the equation to describe this relationship?
• If y varies inversely as x and y = 40 when x = 16, how do you find y when x = 10?
• Does #xy= 1/4# show a direct variation, inverse variation, or neither?
• Suppose that y varies inversely with the square root of x and y=50 when x=4, how do you find y when x=5?
• Z varies directly with x and inversely with y when x=6 and y=2, z=15. How do you write the function that models each variation and then find z when x=4 and y=9?
• Z varies jointly with x and y when x=7 and y=2, z=28. How do you write the function that models each variation and then find z when x=6 and y=4?
• Suppose that x and y vary inversely, how do you write a function that models each inverse variation when given x=1.2 when y=3?
• Suppose that x and y vary inversely, how do you write a function that models inverse variation given x=1 when y=11?
• Is #x=-7# an inverse variation?
• Is #3x-3y=0# an inverse variation?
• If y varies inversely with x and k = 0.32, what is x when y = 10?
• The cost (£C) to each passenger on a coach trip varies inversely as the number (N) going on the trip. If 36 people go, the cost to each is £6.50, how do you find a formula connecting C and N?
• How do you write an inverse variation equation that relates x and y when you assume that y varies inversely as x given that if y=124 when x=12, find y when x= -24?
• How do you write an inverse variation equation that relates x and y when you assume that y varies inversely as x given that if y= -8.5, when x=6, find y when x= -2.5?
• How do you write an inverse variation equation that relates x and y when you assume that y varies inversely as x given that if y=3.2 when x= -5.5, find y when x= 6.4?
• If 5 men working 6 hours a day can reap a field in 20 days, in how many days will 15 men reap the field if they work for 8 hours a day?
• If y varies directly as x and inversely as the square of z and y=1/6 when x=20 and z =6, how do you find y when x = 14 and z=5?
• If y varies inversely as the cube of x and directly as the square of z and y = -6 when x=3 and z =9, how do you find y when x =6 and z= -4?
• Does the perimeter of a square vary inversely, directly or neither as the length of the side?
• Does the telephone bill vary inversely, directly or neither as the number of telephone calls made?
• Does the intensity of light from a lamp vary inversely, directly or neitheras the square of the distance on sits from it?
• Does the time required to fly from Charlotte to San antonio vary inversely, directly or neither with the speed at which the airplane flies?
• Is y=-2x direct or inverse variation?
• How do you find the constant of variation K for the inverse variation and then write an equation for the inverse variation given Y= 4.5 when X= 3?
• Is #y = z# an inverse variation?
• Is #z = xy# an inverse variation?
• Is #yz = 5x# an inverse variation?
• Is #yx = 3# an inverse variation?
• Suppose y varies inversely with x, how do you write an equation for the inverse variation if y = 9 when x = 4?
• Suppose y varies inversely with x, how do you write an equation for the inverse variation if y = -2 when x = 1.2?
• Suppose y varies inversely with x, how do you write an equation for the inverse variation if y = 8 when x = 1/2?
• Is #m = -5p# a direct variation, inverse variation, or neither?
• Is #c = 3v# a direct variation, inverse variation, or neither?
• Is #c= e/-4 # a direct variation, inverse variation, or neither?
• Is #8y=x# a direct variation, inverse variation, joint or neither?
• Is #y/x = 8# a direct variation, inverse variation, joint or neither?
• Is #xy= 1/5# a direct variation, inverse variation, joint or neither?
• Is #y/(xz) = -4# a direct variation, inverse variation, joint or neither?
• If x varies inversely with y and x = 8 when y = 6, how do you find y when x = 10?
• If I varies inversely with R and I = 0.15 when R = 50, which equation should be used to show this relationship?
• If #xy = −25# what is the constant of variation for this relationship?
• Is #y =2/ x # an inverse variation?
• Is #y = x / 2# an inverse variation?
• Is #y = 2x# an inverse variation?
• Is #y=x/5# an inverse variation?
• Is #y=5/x# an inverse variation?
• Is #y=x+5# an inverse variation?
• Is #y=5x# an inverse variation?
• How do you write the equation if E is inversely proportional to Z and Z = 4 when E = 6?
• How do you write the equation if P varies inversely as Q and Q = 2/3 when P = 1/2?
• How do you write the equation if R is inversely proportional to the square of I and I = 25 when R = 100?
• How do you write the equation if F varies inversely as the cube root of S and S = 64 when F = 4?
• How do you write the equation if Z is inversely proportional to the sum of x and y and the sum of x and y is 10 when Z is 4?
• How do you write the equation if A varies inversely as the cube of b and b is 1/3 when a is 27?
• Suppose y varies inversely with x and x = 12 when y = 3 what is the equation of the inverse variation?
• If y varies directly as x, and y=42 as x=6, how do you find y for the x-value 3?
• If y varies inversely as x, and y=10 as x=7, how do you find y for the x-value of 10?
• If y varies directly as x, how do you find the constant of variation if y=32 when x=8?
• Is y= -4x is an example of inverse variation?
• Is #y = x/3# an inverse or direct variation?
• Is #x = 3/y# an inverse or direct variation?
• Is #1/2xy = 2# an inverse or direct variation?
• The variables x and y vary inversely. How do you use the given values to write an equation relating x and y and then find y when x = 0.5?
• Is #y/6 = x# a direct or inverse variation?
• If x varies inversely as y, and x = 13 when y = 9, how do you find x when y = 0, 3, 6, 12, 15, 18?
• The variables x and y vary inversely, when x is 9 y is 36 if x is 3 what is y?
• Y is inversely proportional to the square of x when y =50, x=2, how do you find an equation connecting y and x?
• If q is inversely proportional to p, and q = 3 / 2 when p = 72 how do you write the equation?
• How do you find the constant of proportionality and write an equation if q is inversely proportional to p, and q = 3 / 2 when p = 60?
• How do you determine the constant of proportionality if E is inversely proportional to z and z=4 when E=6?
• How do you determine the constant of proportionality if P varies inversely as Q and Q=2/3 when P=1/2?
• How do you determine the constant of proportionality if y is inversely proportional to x and y = 6 when x = 4?
• Given y inversely proportional if y = 10 when x = 5, how do you determine k?
• Given y inversely proportional if y = 25 and k = 50, how do you determine k?
• If y varies inversely as x and y = 28 when x = 4, then how do you find k, the constant of proportionality?
• If y varies inversely as x and y = 6 when x = 18, then how do you find x when y = 10?
• If y varies directly as x and y = -24 when x = 8, then how do you find y when x = 10?
• What is the constant of proportionality in y=9/x?
• R is inversely proportional to the cube of S, if R = 2 and S = 7, how do you find the value of k?
• If y varies inversely as x, and y = 18 when x = 2, how do you find y when x = 4?
• How do you find the constant of variation K for the inverse variation and write the inverse variation equation given x=7 y=5?
• How do you find the constant of variation K for the inverse variation and write the inverse variation equation given x=3 y=-8?
• How do you find the constant of variation K for the inverse variation and write the inverse variation equation given x= 1/2 y= 14?
• How do you write inverse variation equations given y=7 when x=4?
• How do you write inverse variation equations given y= 18 when x=2?
• How do you write inverse variation equations given y = 9 when x = 3?
• How do you write an inverse variation equations given x = 12 when y = 3.?
• How do you write an inverse variation equations given y = 8 when x = 4?
• How do you write an inverse variation equations given y = 5 when x = 2?
• How do you write an inverse variation equations given y=6 when x=8?
• How do you write an inverse variation equations given y=8 when x=1.55?
• How do you write an inverse variation equation given #y= -6# when #x= -2#?
• How do you write an inverse variation equations given x = 0.5 when y = 2.5?
• How do you write an inverse variation equations given y=4 when x =7?
• How do you write an inverse variation equation given y = 10 when x = 2?
• How do you write an inverse variation equations given y = 3 when x = 7?
• How do you write inverse variation equation given x = 8, y = 24?
• How do you write inverse variation equation given x = 3, y=7?
• How do you write inverse variation equation given x =16 , y =1 ?
• How do you write inverse variation equation given x = 11 , y = 2?
• How do you write inverse variation equation given y=110 and x=6?
• Question #8e6ef
• The Intensity I, of light received at a source varies inversely as the square of the distance,d,from the source, If the intensity if 53 foot-candles at 45 feet, find the intensity at 9 feet?
• If a varies jointly as b and c, and a = -10, when b = 12 and c = 2, how do you find a when b = 8 and c = ½?
• What is #(1+1/2)(1+1/3)(1+1/4)(1+1/5).....(1+1/2003)#? thanks...
• If y varies inversely as x and y = 8 when x = 4, find y when x = 16?
• If y varies inversely as #x^2# and y = 10 when x=2 , find y when x = 0.5?
• If y varies inversely as x and y = 24 when x = 3, what is y when x = 8?
• If y varies inversely as x and If y = -32 when x = 2, what is x when y = 4?
• If y varies inversely as #x^2# and If y = 2 when x = 6, what is y when x = 3?
• The length of a rectangle with constant area varies inversely as the width. When the length is 18 ft, the width is 8 ft. How do you find the length when the width is 9 ft?
• The height of a cylinder with constant volume is inversely proportional to the square of its radius. If h = 8 cm when r = 4 cm, what is r when h = 2 cm?
• The intensity of light received at a source varies inversely as the square of the distance from the source. A particular light has an intensity of 20 foot-candles at 15 feet. What is the lights intensity at 10 feet?
• The Volume of an enclosed gas (at a constant temperature) varies inversely as the pressure. If the pressure of a 3.46-L sample of neon gas at 302°K is 0.926 atm, what would the volume be at a pressure of 1.452 atm if the temperature does not change?
• Suppose that y varies directly with x and inversely with z, y=18 when x=15 and z=5. How do you write the equation that models the relationship, then find y when x=21 and z=7?
• If y varies inversely as x, and y=10 when x=4, how do you find x when y=8?
• The amount of candy shared by the class varies inversely with the number of students in the class. If there are 120 pieces of candy, how much would each student receive in a class of 30?
• How do you write the inverse variation equation of the following: Y varies inversely with x and y = 9 when x = 14?
• Assume that y varies inversely as x. If y = -6 when x = -2, how do you find y when x = 5?
• Assume that y varies inversely as x. If y = 7 when x = -3, how do you find y when x = 7?
• Assume that y varies inversely with x. If y = 8.8 when x = 2.4, how do you find x when y = 2.1?
• Suppose that y varies jointly with w and x and inversely with z and y=400 when w=10, x=25 and z=5. How do you write the equation that models the relationship?
• If y varies inversely with x, and y=15 then x=5, what is the value of the constant of variation?
• The intensity of a light varies inversely as the square of the distance from the light source. If the intensity from a light source 3 feet away is 8 lumens, what is the intensity at a distance of 2 feet?
• Suppose y varies inversely with x. How do you write an equation for each inverse variation given y = 7 when x = 3?
• Suppose y varies inversely with x. How do you write an equation for each inverse variation given y = 15 when x = 2?
• If y varies inversely as twice x. When x = 4, y = 10. how do you find y when x = 8?
• If y varies inversely as x, and y = 3 when x = 6, how do you find the value of x when y = 18?
• If y varies inversely as x, how do you find x when y = 3 if y = 15 when x = 2?
• If x varies inversely as y, how do you find x when y = 64 if x = 0.2 when y = 48?
• If Y varies inversely as twice x. When x = 3, y = 6 what is the value of y when x = 9?
• If y varies inversely as x^2, and y=2 when x=4, what is the constant of variation?
• Assume that y varies inversely with x and that y is 2 when x is 4. Which of the following is the equation of inverse variation?
• Which equation is the inverse variation relationship for the following quantities y =-12 when x = 5?
• Assume that y varies inversely with x. If y = -3 when x = 2.4, what is y when x = 2?
• Assume that y varies inversely as x. If x = 12 when y = 9, what is x when y = -3?
• Assume that y varies inversely with x. If y = 3.75 when x = 9, what is x when y = 6.75?
• If z varies inversely as w and z=10 when w=0.7, how do you find z when w=40?
• Suppose that a y varies inversely with x, and y=6 when x=8. What is an equation for the inverse variation?
• If y varies inversely with x and y = 8 when x = 5, then what is y when x = 2?
• F(x) varies inversely with x and f(x) = –10 when x = 20. What is the inverse variation equation?
• If xy = –12. What is the constant of variation for this relationship?
• V varies inversely with T and V = 18 when T = 3. Which equation shows this relationship?
• The volume V of a gas varies inversely as pressure P is exerted. If V = 4 liters when P = 3.5 atmospheres, how do you find V when P = 2.5 atmospheres?
• The volume V of a gas varies inversely as pressure P is exerted. If V = 4 liters when P = 3 atmospheres, how do you find V when P = 7 atmospheres?
• If x varies inversely as y and directly as t, and x = 12 when t = 10 and y = 25, how do you find y when x is 6 and t = 3?
• The time it takes to lay a sidewalk of a certain type varies directly as the length and inversely as the number of men working. If eight men take two days to lay 100 feet, how long will three men take to lay 150 feet?
• Suppose z varies directly with x and inversely with the square of y. If z=18 when x=6 and y=2, what is z when x=8 and y=9?
• If r varies jointly as p and q and inversely as t, then how do you find an equation for r if r=6 when p=8, q=−3, and t=3?
• How do you find the variation constant and an equation of variation where y varies inversely as x and y = 6 when x = 14?
• If y varies inversely with x, and y = 5 when x = 7, what is the value of y when x = 4?
• Y varies directly as x and inversely as the square of z. y=10 when x=80 and z=4. How do you find y when x=36 and z=2?
• If y varies inversely as X^2 and X = 9 when y = 64, how do you find the value of y when x = 4?
• Assume the y varies inversely with x and y = 5 when x = 1.3. How do you write the indirect variation equation for the relationship?
• How do you write the inverse variation equation of the following. Y varies inversely with x and y = -12 when x = 6?
• Y varies inversely with x and y = 5 when x = 2. Which is the inverse variation equation for the relationship?
• If f(x) varies directly with x and f(x) = 24 when x = –4, then what is f(x) when x = 12?
• Which is the quadratic variation equation for the relationship given y varies directly with x^2 and y = 36 when x = 3?
• Which is the direct linear variation equation for the relationship given y varies directly with x and y = 12 when x = 3?
• Y varies inversely with the square of x, Given that y= 1/3 when x= -2, how do you express y in terms of x?
• Y varies inversely as the square of x when x=6 y=4, how do you find y when x=2?
• If x varies inversely with y and x = 6 when y = 10, how do you find y when x = 8?
• If I varies inversely with R and I = 0.25 when R = 18, which equation should be used to show this relationship?
• For xy = –16. What is the constant of variation for this relationship?
• V varies inversely with T and V = 14 when T = 7. Which equation shows this relationship?
• How do you find an equation of variation: y varies inversely as the square of x, and y = 0.15 when x= 0.1?
• Y varies inversely as X, and Y = 1/5 when X = 35, how do you find the variation constant and the equation of variation for the given situation?
• If x varies inversely with y and x = 8 when y = 10, how do you find y when x = 6?
• If y varies inversely as the square of x and y = 8 when x = 2, then what is the value of y when x = -1?
• Suppose z varies inversely with t and that z=6 when t=8. What is the value of z when t=3?
• If y varies inversely as x and y = 12 when x = 3, how do you find x when y = 18?
• If y varies inversely with x and y = 3 when x = 4, what is the value of y when x = 2?
• Z varies inversely with x and directly with y. When x=6, y= 2, z=5. What is the value of z when x=4 and y=9?
• If y varies inversely with the square of x, and x=5 when y=3, what is the equation?
• If y varies inversely as x and the constant of variation is 30, what is y when x = 6?
• If x varies inversely as y and x=12 when y=3, what is the value of x when y=9?
• If y varies inversely as x, find the constant of variation and the inverse variation equation given y=110 and x=6?
• If y varies inversely as x and y = -3 when x = 6, how do you find x when y is 36?
• Y varies inversely with twice the value of x. When y = 8, x = 2. How do you find y when x = 8?
• If y varies inversely with x. how do you find the inverse variation equation if x = -3 when y = 30?
• If y varies inversely with x, and x = -10 when y = 60. How do you find the inverse variation equation and use it to find the value of y when x = 15?
• The amount of information retained varies inversely with the number of hours passed since the information was given. If Diana can retain 20 new vocabulary words 1/4 hour after she learns them, how many will she retain 2.5 hours after she reads them?
• If y varies inversely with x, and x = -12 when y = 5. How do you find the inverse variation equation and use it to find the value of x when y = 10?
• If y varies inversely with x, and x = 2.2 when y = 33. How do you find the inverse variation equation and use it to find the value of y when x = 4.84?
• If y varies inversely as x, and y = 12 when x = 6, what is K, the variation constant?
• If x is inversely proportional to y, and x = 60 when y = 0.5, how do you find x when y = 12?
• If y = 7.2 when x = 10, what is the value of x when y = 20?
• If z varies directly as x and inversely as y, and z = 8 when x = 12 and y = 3, the value of the constant of proportionality is what number?
• If y varies inversely as x, how do you find the constant of variation and the inverse variation equation given y=90 when x =6?
• If r varies inversely with w -1. If r = 3/50 when w = 3, how do you find r when w is 10?
• If y varies inversely as x and y = 5 when x = 10, how do you find y when x = 2?
• If y varies inversely as x and y = 9 when x = 14, how do you find why when x = 6?
• If y varies inversely as x. When y = 12, x = 7. How do you find the constant of variation and use it to determine the value for y when x = 4?
• If y varies inversely as x. When y = 16, x = 3. How do you find the constant of variation and determine the value for y when x = 8?
• Z varies inversely as the cube of d. If z = 3 when d = 2, how do you find z when d is 4?
• If y varies inversely as x, and y=40 when x=0.5, how do you find y when x=20?
• The shutter speed, S, of a camera varies inversely as the square of the aperture setting, f. When f=8, S=125. How do you find a formula for S in terms of f?
• If Y varies inversely with x and x=3.25 when y=4.5, what is the value of x when y=3.75?
• Suppose y varies inversely with x. How do you write an equation for the inverse variation for Y = 4 when x = 2.5?
• Suppose y varies inversely with x. How do you write an equation for the inverse variation for Y = 5 when x = -5?
• Suppose y varies inversely as x. If y = 2 when x = 14, how do you find y when x = 7?
• Y varies inversely as x, and y = 50 when x = 10. What is the value of y when x = 20?
• If Y varies inversely with the square of x. When x is 5, y is 4/5, how do you find value of y, when x equals 8?
• If y varies inversely as x, and y = 12 as x = 2, how do you find y for the x-value of 6?
• If z varies inversely as w, and z=10 when w=1/2, how do you find z when w=10?
• If Y varies inversely as x, and y=25 how do you find y when x=3?
• If y varies inversely as the cube of x and x=2.5 when y=0.015, how do you find y when x=5?
• Suppose that y varies inversely with x, how do you write an equation for the inverse variation y=4 when x=-6?
• If y varies inversely as the square of x and y=5 when x=2.5, what is the value of Y when X=9?
• If y varies inversely as x and y is 8 when x is 3, how do you find y when x is 2?
• If z varies inversely as w, and z=3 when w=8, how do you find z when w=2?
• If y varies inversely as x, and y = 3 as x = -2, how do you find y for the x-value of -1?
• The volume V of a given mass of a gas varies directly as the temperature T and inversely as the pressure P.? If V=200 cm^3, T=40 degree and P=10 kg/cm^2, how do you find the volume when T=30 degree, P=5kg/cm^2?
• If y varies inversely as x and y=5 when x=3 how do you find x when y is 15?
• Suppose that y varies inversely with x, and y = 2 when x = 6. What is an equation for the inverse variation?
• Suppose that y varies inversely with x. How do you write an equation for the inverse variation y=6 when x=8?
• If y varies inversely as the cube root of x, and y = 12 when x = 8, how do you find y when x = 1?
• If y varies directly with x, and y=10 when x=15, how do you find y when x=6?
• If x varies inversely as y and x=2 when y=8, how do you find x when y=17?
• If y varies directly as x and inversely as z^2, and y=3 when x=2 and z=4, what is the value of x when y=9 and z=4?
• If Y varies inversely as the cube root of x. If y = 4 when x = 27, how do you find y when x = 8?
• If y varies inversely as x, and y = 2/5 when x = 2, how do you find y when x = 1?
• The height of a circular cylinder of given volume varies inversely as the square of the radius of the base. How many times greater is the radius of a cylinder 3 m high than the radius of a cylinder 6 m high with the same volume?
• If z varies inversely as w, and z=10 when w=0.7, how do you find z when w=20?
• If a varies inversely as b, and a = 3 when b = 4 then what is the value of b when a = 48?
• If y varies inversely as x, and y = 1 as x = -2, how do you find y for the x-value of -1?
• A company has found that the demand for its product varies inversely as the price of the product. When the price x is 4.5 dollars, the demand y is 400 units. How do you find a mathematical model that gives the demand y in terms of the price x in dollars?
• If y varies inversely as x, and y = 5 as x = 6, how do you find y for the x-value of 10?
• If y varies inversely as x, when x is multiplied by 2, y would be multiplied by what number?
• If the temperature is constant the pressure of a gas in a container varies inversely as the volume of the? container. if the pressure is 60 pounds per square foot in a container with 3 cubic feet, what is the pressure in a container with 4.5 cubic feet?
• If x varies inversely as y and x = 2.5 when y = 40, how do you find y when x = 2?
• Suppose that a y varies inversely with x, and y=0.2 when x=2. What is an equation for the inverse variation?
• If y varies inversely as x and y = 320 when x = 25, how do you find y when x is 40?
• If y varies inversely as x, and y=14 when x=7, how do you find y when x=10?
• Assume that y varies directly as x. If y = 4 when x = 0.5, how do you find y when x = 2?
• Assume that y varies inversely as x. If y = 3.2 when x = 0.2, how do you find y when x = 1.6?
• If y varies inversely as x and y = 12 when x = 3, how do you find y when x = 4?
• If y varies inversely with x, and y= 6 when x= 18, how do you find y when x= 8?
• In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the current is 17 A (amperes), the resistance is 10 ohms. What is the resistance when the current is 5a?
• The variables x and y vary inversely. How do you write an equation that relates x and y given x = 15, y = 5?
• F varies inversely as the square of d and f=50 when d=10, how do you express f in terms of d?
• If Z varies inversely as W, and Z=30 when W=0.3 how do you find Z when W=30?
• If y varies inversely as x and y=3 when x=5 how do you find y when x=2.5?
• Suppose that y varies jointly with x and x inversely with z and y=540 when w=15, x=30, and z=5, how do you write the equation that models the relationship?
• Suppose that y varies inversely with x. How do you use the information to find k, and then choose the equation given x=25 and when y=5?
• How do you write a specific formula to describe the variation: S varies jointly with the inverse of the square of P and inversely with the cube of L; S=6 when P=8, L=10?
• How do you write a specific formula to describe the variation:x varies directly with the cube root of y; x=3 when y = 125?
• How do you write a specific formula to describe the variation: Q varies jointly with the inverse of the sum of b and R; Q=3 when b=7, R=3?
• Suppose that the time it takes to do a job is inversely proportional to the number of workers. That is, the more workers on the job the less time required to complete the job. Is it takes 2 workers 8 days to finish a job, how long will it take 8 workers?
• The shutter speed s, of a camera varies inversely as the square of the aperture setting f. When f= 8, s= 125, how do you calculate the value of s when f=4?
• The temperature T at a distance, d meters from a heat source is inversely proportional to the square of the distance. When d=4 t=275 how do you find t when d=6?
• The force, f, between two magnets is inversely proportional to the square of the distance x between them. when x=3 f=4. How do you find an expression for f in terms of x and calculate f when x=2?
• The oscillation frequency f cycles per second, of a spring is inversely proportional to the square root of the mass m kg of the spring. When m=2.56, f=2, how do you find f when m=4?
• If Y varies inversely as x. If y=10 when x=4, how do you find y when x=2?
• If I varies inversely with R and I = 0.75 when R = 14, which equation should be used to show this relation?
• If y varies jointly as the cube of x, w, and the square of z, what is the effect on w when x, y, and z are doubled?
• Each term of a sequence, after the first, is inversely proportional to the term preceding it. If the first two terms are 3 and 6, what is the twelfth term?
• If Z varies directly with x and inversely with y^2 when x=2 and y=5, z=8 what is the value of z when x=4 and y=9?
• If s varies directly as r and inversely as t and s=10 when r=5 and t=3, for what value of t will s=3 when r=4?
• If x varies inversely as y, and x = 11 when y = 15, how do you find x when y = 3?
• Suppose that x and y vary inversely and that x = 2 when y = 8. How do you write the function that models the inverse variation?
• If y varies directly as z and inversely as x and y = 27 and z = -3 when z = 2, how do you find x when y = 9 and z = -5?
• If x varies inversely with y and x = 8 when y = 6, how do you find y when x = 1?
• If Y varies inversely as twice x and when x = 3, y = 8 how do you find y when x = 2?
• If z varies inversely as w, and z=10 when w=0.6, how do you find z when w=20?
• Suppose that y varies directly with x and inversely with z^2, & x=48 when y=8 and z=3. How do you find x when y=12 & z=2?
• How do you write a general formula to describe each variation if V varies directly with x^3; v= 36(pie) when x=3?
• How do you write a general formula to describe each variation if y varies inversely with #sqrt x#; y =4 when x=9?
• How do you write a general formula to describe each variation if T varies jointly with the cube root of x and the square of d; T=18 when x=8 and d=3?
• How do you write a general formula to describe each variation if z varies directly with the sum of the cube of x and the square of y; z=1 when x=2 and y=3?
• How do you write a general formula to describe each variation if the cube of z varies directly with the sum of the squares of x and y; z=2 when x=9 and y=4?
• If Y varies directly as x and inversely as the square of z. y=20 when x=50 and z =5. How do you find y when x=3 and z=6?
• If Y varies inversely as x^2. If y=2 when x=10, how do you find y when x=5?
• The cube root of x varies inversely as the square of y. If x=27 when y=4 how do you find the value of x when y=6?
• If y varies jointly as x and z and inversely as w, and y = 3/2 when x=2, z=2, and w=4. How do you find the equation of variation for the given situation?
• A body’s weight varies inversely with the square of its distance from the center of the earth; if a chicken weighs 20 pounds when it is 5000 miles from the earth’s center, how much will the chicken weigh when it is 10000 miles from the earth’s center?
• The number of toys in the closet vary inversely with the number of children in the room. If there are 28 toys in the closet when there are 4 children in the room, how many toys are in the closet when 7 children are in the room?
• If y varies inversely as x, how do you find the constant of variation if y = 5 when x = -1?
• If x varies inversely with y and x = 4 when y = 9, how do you find x when y = 6?
• Suppose that z varies jointly as u and v and inversely as w, and that z=.8 and when u=8, v=6, w=5. How do you find z when u=3, v=10 and w=5?
• Suppose y varies inversely as x and y=24 when x= 3, how do you find x when y = 36?
• If z varies inversely as w, and z= 20 when w= 0.5, how do you find z when w= 30?
• If y varies inversely as x and y = 725 when x = 20, how do you find x when y is 50?
• If y Varies Inversely As x and if y = 8 When x = 2.5, how do you find x when y = 2?
• If X varies inversely with y and x=-3 and y=-2 then what relates x and y?
• Y varies directly as the cube root of x. Y is 30 when x is 1, how do you find y when x is 27?
• If y varies inversely as x and y = 20 when x = 10, then how do you find the constant of the variation?
• Whats the equation of variation where y varies jointly as x and z and inversely as the square of w and y=20 when x= -0.5, z =4, and w = 5?
• If y varies inversely as x, and y=7 when x=6, what is y when x=3?
• If y varies inversely as x and y=2 when x=6, how do you find y when x=36?
• The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose the the intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 6 miles?
• Suppose x varies inversely with y. If X = 10 when y = 5 how do you find x when y = 14?
• The time (t) required to empty a tank varies inversely as the rate (r) of pumping. A pump can empty a tank in 90 minutes at the rate of 1200 L/min. How long will the pump take to empty the tank at 3000 L/min?
• Y varies directly as x and inversely as the square of z. y=12 when x=64 and z=4. How do you find y when x=96 and z=2?
• If y varies inversely as x. When x = 6, y = 2. How do you find x when y = 12?
• Question #befb7
• Question #2520d
• If y varies inversely with x and y=9 when x=2.5, how do you find y when x=-0.6?
• Assume that the value of an automobile is inversely proportional to its age. If it is worth $3,000 when it is two years old, what is its value when it is six-years-old?
• If x varies inversely as y and y=40 when x=4, how do you find x when y=20?
• Each pair of points (5.4 , 3) and (2, y) is on the graph of an inverse variation, how do you find the missing value?
• If y varies inversely as x, and the two values of x are in the ratio 3:2, what is the ratio of the corresponding values of y?
• Suppose f varies inversely with g and that f = 45 when g = 6 . What is the value of f when g = 9?
• If #x+1/x=-1# then What is the value of #x^247+1/x^187=#?
• Question #e0522
• How do you prove that #(x+pi/4)-(x+pi/4)^3/(3!)+(x+pi/4)^5/(5!)-... = 1-(x-pi/4)^2/(2!)+(x-pi/4)^4/(4!)=...= 1+x-x^2/(2!)-x^3/(3!)+x^4/(4!)+x^5/(5!)-..., x in (-oo, oo)?#
• If #y=2x-3# what is #x# when #y=5#?
• What is an open interval?
• Question #75954
• Question #a0d22
• Question #c1bff
• Is #xy=4# a direct of inverse variation?
• Is #y=x/10# a direct of inverse variation?
• Assume that y varies inversely as x, how do you write an inverse variation equation that relates x and y given y=8 when x=6?
• Assume that y varies inversely as x, how do you write an inverse variation equation that relates x and y given y=3 when x=-10?
• Assume that y varies inversely as x, how do you write an inverse variation equation that relates x and y given y=-1 when x=-12?
• If y=8, when x=4, how do you find x when y=2 given that y varies inversely as x?
• If y=7, when x=6, how do you find y when x=-21 given that y varies inversely as x?
• If y=-5, when x=9, how do you find y when x=6 given that y varies inversely as x?
• How do you determine whether #5x-y=0# is an inverse or direct variation?
• How do you determine whether #xy=1/4# is an inverse or direct variation?
• How do you determine whether #x=14y# is an inverse or direct variation?
• How do you determine whether #y/x=9# is an inverse or direct variation?
• Assume that y varies inversely as x, how do you write an inverse variation equation that relates x and y given y=2 when x=20?
• Assume that y varies inversely as x, how do you write an inverse variation equation that relates x and y given y=18 when x=4?
• Assume that y varies inversely as x, how do you write an inverse variation equation that relates x and y given y=-6 when x=-3?
• Assume that y varies inversely as x, how do you write an inverse variation equation that relates x and y given y=-4 when x=-3?
• Assume that y varies inversely as x, how do you write an inverse variation equation that relates x and y given y=-4 when x=16?
• Assume that y varies inversely as x, how do you write an inverse variation equation that relates x and y given y=12 when x=-9?
• If y=12 when x=3, how do you find x when y=6 given y varies inversely as x?
• If y=5 when x=6, how do you find x when y=2 given y varies inversely as x?
• If y=4 when x=14, how do you find x when y=-5 given y varies inversely as x?
• If y=9 when x=9, how do you find y when y=-27 given y varies inversely as x?
• If y=15 when x=-2, how do you find y when x=3 given y varies inversely as x?
• If y=-8 when x=-12, how do you find y when x=10 given y varies inversely as x?
• How do you determine whether the situation is an example of an inverse or direct variation: the drama club can afford to purchase 10 wigs at $2 each or 5 wigs at $4 each?
• How do you determine whether the situation is an example of an inverse or direct variation: the spring family buys several lemonades for $1.50 each?
• How do you determine whether the situation is an example of an inverse or direct variation: Nicole earns $14 for babysitting 2 hours, and $21 for babysitting 3 hours?
• If y=9.2 when x=6, how do you find x when y=3 given that y varies inversely as x?
• If y=3.8 when x=1.5, how do you find x when y=0.3 given that y varies inversely as x?
• If y=1/5 when x=-20, how do you find y when x=-8/5 given that y varies inversely as x?
• If y=-6.3 when x=2/3, how do you find y when x=8 given that y varies inversely as x?
• Suppose f varies inversely with g and g varies inversely with h, what is the relationship between f and h?
• Does #xy=-k# represent an inverse variation when k is not zero?
• What is a real world situation that can be modeled by an inverse variation equation?
• If y=10 when x=4, how do you find x when y=2 given that y varies inversely as x?
• If y=12 when x=3, how do you find x when y=6 given that y varies inversely as x?
• If y=-5 when x=3, how do you find x when y=-3 given that y varies inversely as x?
• If y=21 when x=-6, how do you find x when y=7 given that y varies inversely as x?
• Question #b310b
• Question #f926d
• Question #59f7b
• Y varies inversely as x. y is 4 when x is 16. How do you find y if x is 20?
• Suppose that #y# varies directly as the square root of #x#, and the #y=43# when #x=324#. What is #y# when #x=172#?
• Question #90a6b
• If #f_0(x)=1/(1-x)# and #f_k(x)=f_0(f_(k-1)(x))# what is the value of #f_(2016)(2016)#?
• X varies inversely as the square of y, and x=3 when y=20, what is the equation?
• Question #ee0bc
• Suppose that y varies inversely with x. When x=14, then y=6. How do you find y when x=7?
• How do you write an inverse variation equation given y=8 when x=6?
• How do you write an inverse variation equation given y=2 when x=5?
• How do you write an inverse variation equation given y=3 when x=-10?
• How do you write an inverse variation equation given y=-1 when x=-12?
• Assume y varies inversely as x, if y=8 when x=4, how do you find x when y=2?
• Assume y varies inversely as #x," if " y=7 " when " x=6#, how do you find y when #x=-12#?
• Assume y varies inversely as x, if y=-5 when x=9, how do you find y when x=6?
• Assume y varies inversely as x, how do you write the equation given y=2 when x=20?
• Assume y varies inversely as x, how do you write the equation given y=18 when x=4?
• Assume y varies inversely as x, how do you write the equation given y=-6 when x=-3?
• Assume y varies inversely as x, how do you write the equation given y=-4 when x=-3?
• Assume y varies inversely as x, how do you write the equation given y=-4 when x=16?
• Assume y varies inversely as x, how do you write the equation given y=12 when x=-9?
• Assume y varies inversely as x, if y=12 when x=3, how do you find x when y=6?
• Assume y varies inversely as x, if y=5 when x=6, how do you find x when y=2?
• Question #6d237
• F is inversely proportional to #sqrtg# when f=15, g=144. How do you work out g when f=90?
• How do you find the variation constant and an equation of variation where y varies inversely as x and y=9 when x =12?
• Question #d27b1
• Question #94789
• Question #ee21f
• Question #de70e
• Question #12126
• Question #96ca4
• Question #56c3d
• If p and q are distinct real numbers that satisfy the equation 3y^2-11y-224=0, find the sum of p + q?
• Question #68f7a
• Question #fbb64
• What are real-life examples of inverse proportion?
• Suppose that y varies inversely with x. Write a function that models the inverse function. x = 7 when y = 3?
• z varies inversely with x and directly with y. When x = 6 and y = 2, z = 5. What is the value of z when x = 4 and y = 9?
• Suppose that y varies inversely with x. Write a function that models the inverse function. x = 1 when y = 12?
• Question #8bad6
• If #y# varies inversely as the square of #x# and #y=4# when #x=5#, what is #y# when #x# is #2#?
• Question #948f1
• Question #0e6eb