Question

Columbus and Dayton are 9.7 cm apart from each other on a map that has a scale of 1.1 cm: 15 mi. How far apart are the two cities? Round your answer to the nearest tenth.

A. 151.6 miles
B. 155.4 miles
C. 122.4 miles
D. 132.3 miles

Answer 1

D. 132.3 miles

Explanation:

Create a proportion where x is the actual distance between the two cities.

`(1.1)/(15)` =
`(9.7)/(x)`

Cross multiply and solve for x:

1.1x = 145.5

x = 132.3

So, the two cities are 132.3 miles apart.

The correct answer is D. 132.3 miles