Question

1. an architect is mocking up a community park design. the park will have a trail around the park that measures 3 miles. if the mock - up of the trail is 12 inches, then what is the scale of the mock - up?

Explanation:

Step1: Convert miles to inches

1 mile = 63360 inches, so 3 miles = 3×63360 = 190080 inches.

Step2: Calculate the scale

Scale = model length / actual length. The model - length of the trail is 12 inches and the actual length is 190080 inches. So the scale is $\frac{12}{190080}=\frac{1}{15840}$.

Answer:

1:15840