Mathematics, 18.02.2020 01:54 mattdallas6214

Two cars start at the same time, but travel in opposite directions. One car's average speed is 80 miles per hour (mph). At the end of 4 hours, the two cars are 520 miles apart. Find the average speed in mph of the other car. (Enter an exact number.

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Two cars start at the same time, but travel in opposite directions. One car's average speed is 80 mi...