SOLUTION: Your friend flew to Miami in a plane that averaged 600 mi/h. She drove back home, averaging 50 mi/h. What is her average speed in miles per hour for the whole trip? Assume the dist

Question 655413: Your friend flew to Miami in a plane that averaged 600 mi/h. She drove back home, averaging 50 mi/h. What is her average speed in miles per hour for the whole trip? Assume the distances by plane and car are equal.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Your friend flew to Miami in a plane that averaged 600 mi/h. She drove back home, averaging 50 mi/h. What is her average speed in miles per hour for the whole trip? Assume the distances by plane and car are equal.
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Avg speed = 2*600*50/(600 + 50) (proof available)
= 60000/650
=~ 92.3077 mi/hr
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