SOLUTION: a boat travels 40 miles in two hours,speeds up to travel the next 80 miles in three hours then slows down to travel the last 40 miles in three hours.What is the average speed of th

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Question 553342: a boat travels 40 miles in two hours,speeds up to travel the next 80 miles in three hours then slows down to travel the last 40 miles in three hours.What is the average speed of the boat for the entire trip?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
a boat travels 40 miles in two hours,speeds up to travel the next 80 miles in three hours then slows down to travel the last 40 miles in three hours.What is the average speed of the boat for the entire trip?
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Total distance = 40 + 80 + 40 = 160 miles
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Total time = 2 + 3 + 3 = 8 hrs
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Average speed = total distance/total time = 160/8 = 20 mph
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Cheers,
Stan H.
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