Question

Trey runs 3 miles in 25 minutes. At the same rate, how many miles would he run in 20 minutes?

Answer 1

Answer:

Step-by-step explanation:

Set up a proportion.

3/25 = x / 20      Notice that both times are in the denominators. Be sure you always set up a proportion that way. Like units in the denominator. Like units in the numerator.

Cross multiply

3 * 20 = 25 * x                        Combine

60 = 25x                                 Divide by 25

60/25 = x

x = 2.4 miles in 20 minutes.

Answer 2

Answer:

In 20 minutes, Trey would run 2.4 miles.

Step-by-step explanation:

20x = 25

x = 4/5

This means we multiply the number by 0.8

3 * 0.8 =

3/25 = 2.4/20

2.4 miles / 20 minutes