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Mathematics 17 Online
OpenStudy (anonymous):

David is rowing a boat upstream. The river is flowing at a speed of 2 miles per hour. David starts rowing at a speed of 6 miles per hour, but as he gets tired his speed decreases (at a rate of 1 mile per hour, every hour). Which equation represents the speed of the boat for x hours spent rowing? A. y = 6 − 2x B. y = x − 4 C. y = 6 − x D. y = x + 4 E. y = 4 − x

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