Description
A commuter regularly drives 70 miles from home to work, and the amount of time required for the trip varies widely as a result of road and traffic conditions. The average speed for such a trip is a function of the time required. For example, if the trip takes 2 hours, then the average speed is miles per hour.
= 3570 2
(a) What is the average speed if the trip takes an hour and a half? (Round your answer to three decimal places.)
mph
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Explanation & Answer
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The average speed is distance divided by time. In this case the distance is 70 miles and the time is 1.5 hours. So speed which is s=70/1.5=46.667 miles per hour.
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