



 
Hello, Use the fact that distance is velocity multiplied by time: d = v t. The boat's velocity is going to be its velocity relative to the water, plus the velocity of the current. d = (v_{boat} + v_{current}) t Let v be the velocity of the current downstream (you could pick upstream here, but I felt like picking downstream). Then the velocity of the current upstream (if we keep the boat's velocity at positive 16 miles per hour) is v. The distance travelled going upstream is the same as the distance downstream. From here can you set up an equation that lets you solve for v? Haley  


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