Answers created by EZ as pi

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• Ami spent #$150# for #p# pennants to sell at the baseball game. She sold all but #5# of them for #$0.75# more than she paid for each one. Write a formula for #s#, the amount she received for sales?
  
• What is the equation of the line that passes through (#5, -2)# and #(3, 4)#?
  
• Jill bought 6.5 meters of blue lace and 4.12 meters of green lace. What was the total length of lace she bought?
  
• Brock is painting two walls that are the same size. he already has painted #1/4# of one wall and #4/12# of the other wall. How much area does Brock still need to paint?
  
• How do you simplify #3/4 div 1/8#?
  
• #n(n^2+2n-4)# What is the product in simplified form?
  
• How do you find the slope and intercept of #y=5x#?
  
• How do you simplify #7+9times3-25 # using order of operations?
  
• How do you list all the factors of 70?
  
• How do you evaluate #2^ { - 2} \cdot ( 12\cdot 3) - 5^ { 3}#?
  
• How do you simplify #(343 u^4 c^-5) /(7 u^6 c^-3)^-5#?
  
• What's the the algebraic expression for "32 divided by the quantity #y# plus 12"?
  
• The scale on a map is #1:25000# .(A) find the distance in kilometres between two islands represented by a distance of #20cm# on the map. (B) find the distance between two towns on the map that are #10# kilometres apart?
  
• How do you find the decimal of #(-9)/5#?
  
• What is #x# in the equation #1000 = (x - 8) ^(3/2)#?
  
• How do you solve the system of equations #7x + 5y + 7z = 60#, #15x + 2z = - 195#, and #5z = 75#?
  
• There are 57 students in the class. The ratio of boys to girls is 4:15. How many boys need to leave the room so the ratio becomes 4:11?
  
• How do you solve for #r# in #\frac { 1} { 2} \pi r t = \frac { Q V } { s }#?
  
• If the cost of a telephone conversation varies directly as the length of the time of conversation, and if the cost of six minutes is $0.90, what would be the cost for a nine-minute call?
  
• How many numbers between 100 to 10000 which are in the form #n^3# ?
  
• What number is 40% of 37.5?
  
• How do you solve the following system: #4x+3y= -1 , 4x-5y-23=0 #?
  
• How do you factor completely #2y^3 + 6y^2 - 5y - 15#?
  
• How do you solve the system of equations#-8x+5y=-8# and #-16x-y=-16# by elimination?
  
• A circle contains a sector with an area of #75cm^2# and a central angle of #270°#. What is the radius of the circle to two decimal places?
  
• What would be the cross section of a rectangular prism that is sliced horizontally?
  
• What is 40% of 2500?
  
• Sarah has made 21 bracelets to sell at craft fair. If this is 70% of the bracelets she wants to make, how many more bracelets does she need to make?
  
• How do you solve #\frac { 2} { 5} ( 7+ \frac { 8} { p } ) + \frac { 3} { 10} ( 7+ \frac { 14} { p } ) = 100#?
  
• What is the shape of the base of a pentagonal right prism?
  
• How do you simplify #(9x + 10xy) / x#?
  
• Are dilated triangles basically just similar triangles?
  
• What is #4 2/15 - 2 11/45#?
  
• What is the product of #1/5, 5/6,# and #4/9#?
  
• How do you find the x and y intercept given #f(x) = 2/3x + 4#?
  
• The purchase price of a camera is $84. The carrying case is 12% of the purchase price. Tax is 6% of the subtotal. What is the total cost for the camera and case plus tax?
  
• The volume of air in a model car is #40cm^3# . A scale of 1:50 was used to create the model. What is the volume of air in the actual car?
  
• How do you solve for x in # 7/(x-2) + 3/(x+2) = -x/(x^2-4 )#?
  
• The number of boys is #2/3# of the number of girls in a concert. There are #30# more girls than boys. How many children are there at the concert?
  
• What is the slope of the line perpendicular to # y=-10/3x +12 #?
  
• How do you simplify # 8 1/3 divide 2 9/10#?
  
• How do you simplify #5^3 / 3^4#?
  
• What is #1/6 * 55#?
  
• In a batch of light bulbs, 30% are tinted. If 45 lightbulbs are tinted, how many lightbulbs are in the batch?
  
• How do you write an equation in standard form for a line passing through (3, 4) and (–3, –8)?
  
• How to simplify #(3times10^1)(10^-2)# in scientific notation?
  
• How do you write #385 * 10^3# in scientific notation?
  
• Please solve # 15 1/2 + 16 1/4 - 12 5/8 - 14 1/6 ?#
  
• What is the cost of a $8.99 gourmet cheeseburger that has a tax rate of 9%?
  
• How do you define your variables when given a word problem?
  
• Four balls of wool will make eight knitted caps. How many balls of wool will Malcolm need if he wants to make six caps?
  
• How do you solve the system #y=2x+6# and #2x-y=2# using substitution?
  
• What is an algebraic equation?
  
• An antique jar priced at 30,000 pesos Increases its value by 10% every Year, how Much will it cost after 5 years?
  
• A review center opened with only 10 students enrolling on the first month.However it has been observed that the number of students doubled every month, how many were enrolled in the 8th month ?
  
• How do you solve #x^2+10x+16=0# by completing the squares?
  
• How do you simplify #(x^2 + 3x + 10)(4x^2 - 2x - 7)#?
  
• How do you simplify #sqrt(49x^12y^4z^8)#?
  
• 25 men are employed to do a work in, which they could finish in 20 days but they drop off by 5 men at the end of every 10 days. In what time will the work be completed?
  
• At noon, Cesar cast a shadow 0.15 foot long. Next to him a streetlight cast a shadow 0.25 foot long. If Cesar is 6 feet tall, how tall is the streetlight?
  
• How do you evaluate #cos^-1 0.8217#?
  
• How do you find the twenty-fourth positive multiple of 7?
  
• How do you solve #-25x - 15\leq - 20x - 7#?
  
• How do you solve the following system: #4x-y=6, 5x+2y=20 #?
  
• How do you solve #-5( x - 3) = - 25#?
  
• Mariska was decorating her room. She arranged 63 picture tiles on a wall in the shape of a rectangle. How many rows of tiles could be on the wall?
  
• A particular shade of paint is made by mixing 5 parts red paint with 7 parts blue paint. To make this shade, Shannon mixed 12 quarts of blue paint with 8 quarts of red paint. Did Shannon mix the correct shade?
  
• If the sum of three consecutive multiples of #6# is #72#, what is the biggest of these three multiples?
  
• 44 is 55% of what number?
  
• What is the slope of a line perpendicular to a line with a slope of #3#?
  
• The sum of the quotient of a number and 3 and 8 is 16. What is the number?
  
• How do you evaluate 4√112 +5√56 - 9√126?
  
• The side length of an equilateral triangle is 20cm. How do you find the length of the altitude of the triangle?
  
• Jesus purchased cookies for a party. He bought 11 cookies for $.51 each and 12 cookies for $.62. How much money did he spend on cookies?
  
• If # 2^(n-7) \times 5^(n-4) = 1250#, what is the value of #n#?
  
• How do you solve #log_10 root3(10)=x#?
  
• What is 5% of 200?
  
• How do you simplify #(x^2 - 7x + 10)/( x^2 - 10x + 25) * (x - 5)/( x - 2)#?
  
• How do you find the slope and intercept of #f(x)=-5x-4#?
  
• The difference between two numbers is 3*54/100. If the greater number is 38*3/100, then the smaller number is ?
  
• If the ratio is 3:1 what is the percentage?
  
• What are the solutions to the linear equation #y=6x-8#?
  
• How do you divide #(26u ^ { 7} z ^ { 7} - 15u ^ { 2} z ^ { 7} ) \div ( - 3u ^ { 3} z ^ { 4} #)?
  
• Last year attendance was 300.this year is 360. What was the percent increase?
  
• #R6000# is invested at #6.5%# simple interest. What is the final amount available after #3# years?
  
• The diameter of the moon is #3,474,000# metres. How is this written in scientific notation?
  
• Find the equations of the straight lines drawn through the point #(1 ,-2)#, making angle of #45°# with the #x#-axis?
  
• Determine whether #x^2+14x+49# is a perfect square trinomial, if so, how do you factor it.?
  
• How do you find the reciprocal of 3?
  
• What percent of $90 is $9?
  
• What is the answer to 4(7c+2)=28c?
  
• How do you simplify #(4w^2-49z^2)/(14z-4w)#?
  
• How do you solve #4x^2+17x+15=0#?
  
• How do you simplify #((4a^3 b)/(a^2 b^3)) ((3b^2)/(2a^2 b^4))#?
  
• What is 0.7% of 110?
  
• A corner store sells two kinds of baked goods: cakes and pies. A cake costs $14 and a pie costs $8. In one day, the store sold 12 baked goods for a total of $144. How many cakes did they sell?
  
• How do you simplify #-2[7.5 + (-7.9)]# using order of operations?
  
• Say you bought 3 pizzas. If you ate #5/12# and Joe ate #1 1/4# how much is left for Jenn?
  
• What is the LCM of 18 and 24?
  
• How to solve #8x^2−11x−10# by the factorization method?
  
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