Question 133296
A mam walks 15 blocks at a rate of 2 miles per hour. If there were 20 blocks in a mile, how long will it take him to walk?

Use distance = rate (time) to find t.

15 = 2(t)

15/2 = t

7.5 = t

Set up a proportion:

7.5/t = 15/20

15x = 7.5 times 20

15x = 150

x = 150/15

x = 10 minutes