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noeliaortiz3478
16.07.2020 •
Mathematics
Gilda drove 650 miles at an average speed of 50 miles per hour. How many miles per hour faster would she have had to drive in order for the trip to have taken 1 hour less? Express your answer as a common fraction.
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Ответ:
325/78 = 4 13/78 miles per hour
Step-by-step explanation:
Total distance for Gilda to travel = 650 miles
Speed used for the journey= 50 miles per hour
Time taken = distance/speed
Time taken = 650/50
Time taken = 13 hours
Then how many miles per hour in essence what will be her speed in other for the journey to last less than one hour of her journey , that is 13 -1 = 12 hours
Speed = distance/time
Speed= 650/12
Speed= 54.1667 miles per hour
She would have gone
=650/12 -650/13
=(8450-7800)/156
=650/156
= 325/78
= 4 13/78
Ответ:
2.4
Step-by-step explanation: