Question

ratios and proportions end - of - lesson test
10 which of the following is the actual length of a window that is 1 1/2 inches long on a drawing with a scale of 1 inch = 6 feet?
7 feet
8 feet 6 inches
9 feet
8 feet
skip 9/10 complete

Explanation:

Step1: Convert mixed - number to improper fraction

$1\frac{1}{2}=\frac{3}{2}$ inches.

Step2: Use the scale ratio

The scale is 1 inch = 6 feet. So for $\frac{3}{2}$ inches, the actual length $L$ is $L=\frac{3}{2}\times6$ feet.

Step3: Calculate the actual length

$\frac{3}{2}\times6 = 9$ feet.

Answer:

9 feet