SOLUTION: please help me solve this work problem: A kayak moves at a rate of 11 mph in still water. If the rivers current flows at a rate of 4 mph, how long does it take boat to travel 33 m

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Question 882522: please help me solve this work problem:
A kayak moves at a rate of 11 mph in still water. If the rivers current flows at a rate of 4 mph, how long does it take boat to travel 33 miles upstream?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
t(Up stream) = 33mi%2F%2811-4%29mph+=+33%2F7 4 5/7 hr