Mathematics, 16.01.2020 18:31, desireeandrada9

Aboat has a speed of 9 miles per hour in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current in miles per hour?

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Aboat has a speed of 9 miles per hour in calm water. it takes the boat 4 hours to travel upstream bu...