Sarah drove 40 miles per hour. in 3 hours, sarah drove 120 miles. what is a valid proportion to represent the problem?

Question

asked Sep 15, 2018 112k views

2 Answers

Amir Rossert · Answer 1 · 2018-09-17T07:38:28+0000

The valid proportion to represent the problem is 40 miles / 3 hours = 120 miles / x hours. Solving for x, we find that x is equal to 9 hours.

The valid proportion to represent the problem is:

40 miles / 3 hours = 120 miles / x hours

To solve for x, we can cross-multiply:

40x = 3 * 120

Dividing both sides by 40:

x = 3 * 120 / 40

x = 9 hours

Therefore, the valid proportion to represent the problem is:

40 miles / 3 hours = 120 miles / 9 hours