Question

On Monday, Barb drove to town at 40 miles per hour. On Tuesday, she drove to town at 30 miles per hour. If the total travel time for both trips was 7 hours, how far was it to town?

Answer 1

Explanation:

He traveled at 60 mph a distance of 60*hours.

He traveled at 40 mph the same distance of 40(15 hrs - time hrs). The distance is the same; therefore, set them equal.

60t = 40(15-t)

60t = 600 - 40t

100t = 600

t = 6 hrs for the 60 mph day.

15-t = 9 hours for the 40 mph day.

distance = 6 h x 60 mph = 360 miles.

distance = 9 h x 40 mph = 360 miles.