Mathematics, 18.08.2020 05:01, HistoryLee

Thirty years ago, police would check a highway for speeders by sending a helicopter up in the air and observing the time it would take for a car to travel between two wide lines placed 1/10th of a mile apart. On one occasion, a car was observed to take 7.2 seconds to travel this distance. What is the speed of this car in miles per hour?

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Thirty years ago, police would check a highway for speeders by sending a helicopter up in the air an...