need help scaleing a picture

Algebra
Tutor: None Selected Time limit: 1 Day

I think that it is 80! is that right ?


Instructions:Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.Ari is designing a patio that will be 20 feet long and 16 feet wide. He makes a scale drawing of the patio using a scale of 1 inch to 4 feet.
The ratio of the area of the scaled drawing to the actual area of the patio is 1 square inch to _______ square feet.

May 13th, 2015

Given dimensions are - 

Length = 20 ft

Width = 16 ft

so, Area = 20*16 ft sq = 320 ft sq

scale: 1 in = 4 feet

So, scaled length = 20/4 in = 5 in

scaled width = 16/4 = 4 in

scaled area = 5*4 in sq

scaled area = 20 in sq

so scaled area of 20 in sq is equal to 320 ft sq

thus, 1 square inch is equal to 320/20 ft sq

1 sq in = 16 ft sq

Thus, answer is 16

May 13th, 2015

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