Mathematics, 05.06.2020 07:58 allimaycatp8qgaq

two cars start at the same time, but travel In opposite direction. one car's average speed is 20 miles per hour. at the end of 4 hours, the two cars are 280 miles apart. find the average speed in mph of the car.

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two cars start at the same time, but travel In opposite direction. one car's average speed is 20 mil...

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