SOLUTION: You travel 2 hour at 35 mph, 3 hours at 55 mph and 4 hours at 70 mph. What is your average speed?

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Question 261455: You travel 2 hour at 35 mph, 3 hours at 55 mph and 4 hours at 70 mph. What is your average speed?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
2*35 = 70 miles
3*55 = 165 miles, etc.
Add the total miles, divide by the total time.