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3 years ago

7

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 t

o make the trip in 5 hours

1 answer:

allsm [11]3 years ago

6 0

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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