Question

Practice WSSet up a proportion and solve1.Kelly bikes 5 miles to the park in 30 minutes. How long would it take Kelly to bike to thelibrary if the library is 12 miles away?

Answer 1

Given:

Kelly bikes 5 miles to the park in 30 minutes.

We will find the time to bike to the library if the library is 12 miles away

Using the ratio and the proportion

Miles : Minutes

5 : 30

12 : x

so, the time (x) will be calculated using the cross product as follows:

$x=\frac{12*30}{5}=72$

So, the answer will be 72 minutes = 1 hour and 12 minutes.