Asked by David

42. Twenty minutes after a plane leaves the airport, it is reported to be 160 miles away. What average speed of the plane in the miles per hour?

Answers

Answered by Ms. Sue
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Answered by Damon
20/60 = 1/3 of an hour

distance = speed * time

160 miles = speed * (1/3) hour

speed = 3 * 160 miles/hour

= 480 miles/hour
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