Mathematics, 15.01.2020 21:31, koolboy

Astuntman is running on the roof of a train. his combined speed is the sum of the speed of the train and his running speed. the combined speed is 73 miles per hour, and his running speed is 15 miles per hour. find the speed of the train.

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Astuntman is running on the roof of a train. his combined speed is the sum of the speed of the train...