Question

Exercise #3: A car is moving at a steady speed on a highway such that the distance it travels is

proportional to the time it has traveled. The car travels a distance of 170 miles in 2.5 hours.
Unit rate: 68 miles per hour
(c) If the car traveled 425 miles, set up and
solve a proportion that could be used to
find the time, I, it had been driving
Miles
hours

Answer 1

I=2.5 hours

Explanation:

We can use the proportion 170 mi/2.5 hr=425 mi/I hr

Thus, we get 170I=(425*2.5).

Solving for I gives us 6.25 hours