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John drives at an average speed of 40 miles per hour for the first 5 hours of the 655 mile trip to buffalo. Charlie then drives the remaining distance in 7 hours. What is Charlie's average driving speed?

User Priscy
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1 Answer

7 votes
65mph

John drove a total of 200 miles (40mph•5)
655-200= 455 miles
Charlie drove this in seven hours, and 455mi/7hours = 65mph
User Max Lynn
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