Question

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

Answer 1

D=rt       120=40mph*3hours

Answer 2

This proportion is valid to represent the problem
`(miles)/(hours) = (40)/(1)=(120)/(3)`

Explanation:

A proportion is simply a statement that two ratios are equal.

With the data provided for the problem you can say that
`(40)/(1)=(120)/(3)` this proportion is read as "forty miles is to 1 hour as one hundred twenty miles is to three hours."