robertmikhailschley robertmikhailschley

17-10-2018
Mathematics

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A boat has a speed of 28 miles per hour in still water. the boat travels 80 miles upstream and 80 miles downstream on a river, completing the entire trip in 7 hrs. what is the speed of the current.

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imiaochen imiaochen

17-10-2018

80+ 80= 160 miles

160 miles/ 7 hours= 22.857 miles per hour

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