SOLUTION: Elisa made a trip to the lake and back. The trip there took four hours and the trip back took six hours. She averaged 50 km/h on the return trip. Find the average speed of the trip
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Question 334014: Elisa made a trip to the lake and back. The trip there took four hours and the trip back took six hours. She averaged 50 km/h on the return trip. Find the average speed of the trip there.
The answer is 75 km/h (I looked at the answer sheet! Shhh!), but I need to know how to solve it! And i have to show all of my work!
Help? Thank you!!! Answer by user_dude2008(1862) (Show Source):
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