if Mary drove 525 miles in 7 hours at an average speed of 70 miles per hour how much faster would her average speed need to be to make the trip in 5 hours

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asked Feb 22, 2018 212k views

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if Mary drove 525 miles in 7 hours at an average speed of 70 miles per hour how much faster would her average speed need to be to make the trip in 5 hours

Mathematics
college

AntR asked

by AntR

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525/7=75 mph
525/5=105 mph
Mary would need to drive 30 mph faster to make the same trip in 5 hours
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Aurora Wang answered Feb 27, 2018

by Aurora Wang

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