“Ryan drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Ryan drove home, there

Question

“Ryan drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Ryan drove home, there was no traffic and the trip only took 4 hours. If his average rate was 27 miles per hour faster on the trip home, how far away does Ryan live from the mountains?”

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Thạch Thảo 6 months 2021-08-18T09:09:20+00:00 1 Answers 6 views 0

Answers ( )

  1. diemkieu
    0
    2021-08-18T09:11:17+00:00
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    Answer:

    Distance between Ryan home and mountain will be 252 miles

    Explanation:

    Let the distance from home to mountains is d

    It is given that it took 7 hours to go mountains from home

    Let the speed in going to mountain is v

    Then according to question speed in coming from mountain is v+27

    And time taken in come from mountain to home is hour

    As distance will be same in both case

    Distance will be equal to distance=speed\times time

    So v\times 7=(v+27)\times 4

    3v=108

    v = 36 miles per hour

    So distance will be equal to d=36\times 7=252miles

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