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Mathematics, 04.12.2020 22:50 020020

A boat traveled 30 miles upstream on a river in 6 hours. The return trip took the boat 3 hours. What was the rate of the river current, in miles per hour? I will give Brainlist and 50 points

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A boat traveled 30 miles upstream on a river in 6 hours. The return trip took the boat 3 hours. What...
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