Question

Maria's family drove 140 mi to her grandparents' house and averaged 56 mi/h​ on the way there. On the return trip, they averaged 50 mi/h.

What was the total time Maria's family spent driving to and from her grandparents' house? What was the total?

Answer 1

2.8 hours

Explanation:

How long did it take them to drive to the grandparents' house and how long did it take them to drive back?

To calculate the time it took to drive to the grandparents' house, we divide the distance by the average speed: 140 mi / 56 mi/h = 2.5 hours

To calculate the time it took to drive back, we divide the distance by the average speed: 140 mi / 50 mi/h = 2.8 hours.