SOLUTION: On a trip, Sam drove 50 mph for 3 hours and then drove 40 mph for 2 hours. What is Sam's average speed, in mph, for the entire trip?

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Question 208554: On a trip, Sam drove 50 mph for 3 hours and then drove 40 mph for 2 hours. What is Sam's average speed, in mph, for the entire trip?
Answer by Alan3354(69443) About Me  (Show Source):
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On a trip, Sam drove 50 mph for 3 hours and then drove 40 mph for 2 hours. What is Sam's average speed, in mph, for the entire trip?
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he drove 50*3 + 40*2 = 230 miles in 5 hours
230/5 = 46 mph average