Question

Rita runs 8 miles in 84 minutes. At the same rate, how many minutes would she take to run 6 miles?

Answer 1

63 minutes

Explanation:

You can use a proportion to figure this one out.

8 miles/84 minutes = 6 miles/x minutes

Cross multiply:

(6 miles)(84 minutes) = (8 miles)(x minutes)

504 = 8x

x = 63 minutes

Answer 2

63 minutes

Explanation:

You do 84/8 to find how long it takes Rita to run one mile, which is 10.5 minutes per mile. The you do 10.5x6 which equals 63 minutes to do 6 mile