d = rt, so t = d/r. The times are equal.
48/(4 + c) = 16/(4 - c)
Cross multiply and solve for c.
Sarah H.
asked • 04/16/18question in description
A remote-controlled boat can travel at 4 feet per second in calm water. For a specific trip, the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. How fast is the current?
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