Question

Jill can run 20 miles in

three hours at a steady
rate. How many minutes
will it take her to run
five miles?

Answer 1

Answer: 45 minutes

Step-by-step explanation: 20 miles in 180 minutes, 5 miles is 1/4 of 20 miles so you divide 180 by 4 which gives you 45

Answer 2

45 minutes

Explanation:

Change 3 hours to minutes

1 hours = 60 minutes

3 hours = 180 minutes

Using proportions

20 miles 5 miles

------------- = ----------------

180 minutes x minutes

Using cross products

20x = 5* 180

20x =900

Divide each side by 20

20x/20x = 900/20

x =45

45 minutes