Carlos is making a scale drawing of his bedroom. The scale that he is using is 1/4 inch to 2 feet. How long must he draw a line to represent a wall that is 9 feet long?

1 Answer
Jul 8, 2018

The line will be #"1.125 in"# which is equal to #1 1/8# #"in"#.

Explanation:

Use dimensional analysis.

#"1/4 in"##=##"2 ft"#

Multiply by the length of the wall in feet by the conversion factor that has #1/4# #"in"# in the numerator.

#9color(red)cancel(color(black)("ft"))xx(1/4 "in")/(2color(red)cancel(color(black)("ft")))="1.125 in"=1 1/8# #"in"#