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If a ferry boat covers 28 miles in 4 hours, how much distance will it cover in 12 hours?

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AnswerMyQuestions
We can set up a proportion.

4/28 = 12/x

Cross multiply. 4 * x = 4x, 28 x 12 = 336.

We know have 4x = 336, which means we divide 336 by 4, which equals 84. :)
maggiedanger08

The answer is: 84

Hope this helps! <3 :D