SOLUTION: Andy's average driving speed for a 4-hour trip was 45 mph. During that first 3 hours he drove 40 mph. What was his average speed for the last hour of his trip?
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Question 192295: Andy's average driving speed for a 4-hour trip was 45 mph. During that first 3 hours he drove 40 mph. What was his average speed for the last hour of his trip? Answer by Tieria.Erde(4) (Show Source):
You can put this solution on YOUR website! Calculate the total distance the four hour trip was. 1) [4*45=180]
Then calculate the first 3 hours. 2) [3*40=120]
Subtract the difference [180-120=60]
The answer is 60mph
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