SOLUTION: A family is on a road trip from Los Angeles to San Francisco. For the first 20 miles, they averaged 40mph. For the next 300 miles, they averaged 75mph. If they drive 80mph for the
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Question 871269: A family is on a road trip from Los Angeles to San Francisco. For the first 20 miles, they averaged 40mph. For the next 300 miles, they averaged 75mph. If they drive 80mph for the next hour, wwhat would there average speed be for the entire trip?
A. 65
B. 72
C. 75
D. 77
I thought it would be 65, apparently the answer is B. Can someone help me understand why? Answer by ewatrrr(24785) (Show Source):
