SOLUTION: A boat can travel 10 mph in still water. The boat travels 60 miles up a river with a 5 mph current and then returns to its starting point. Find the average rate for the round-tri
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Question 813869: A boat can travel 10 mph in still water. The boat travels 60 miles up a river with a 5 mph current and then returns to its starting point. Find the average rate for the round-trip using the definition of average rate. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A boat can travel 10 mph in still water. The boat travels 60 miles up a river with a 5 mph current and then returns to its starting point. Find the average rate for the round-trip using the definition of average rate.
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Find the time up river.
Find the time down river.
Add them for the total time.
Avg rate = 120/total time.
