SOLUTION: jimmy traveled to the lake and back. the trip took three hours and the trip back took five hours. he averaged 45 mph on the return trip. find the average speed of the trip there.

Question 391814: jimmy traveled to the lake and back. the trip took three hours and the trip back took five hours. he averaged 45 mph on the return trip. find the average speed of the trip there.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
jimmy traveled to the lake and back. the trip took three hours and the trip back took five hours.
he averaged 45 mph on the return trip. find the average speed of the trip there.
:
Let s = average speed on the return trip
:
Write a distance equation, dist = speed * time
:
3s = 45*5
3s = 225
s =
s = 75 mph to the lake
:
Confirm that the distance both ways is the same
75 * 3 = 225
45 * 5 = 225
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