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6 November, 05:20

Bernice left home, driving her car at a rate of 60 miles per hour. Carla left 2 hours later, driving at a rate of 75 miles per hour. How long will it take Carla to catch up to Bernice?

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Answers (2)
  1. 6 November, 05:29
    0
    8 hours

    Explanation:

    75t = 60 (t+2)

    75t = 60t + 120

    75t - 60t = 120

    15t = 120

    t = 8 hrs
  2. 6 November, 09:05
    0
    t = 8 hrs

    Explanation:

    Let t = time on the road when carla catches up with bernice

    Then (t+2) = time bernice is on the road, when carla catches up

    :

    We know that when carla catches bernice, they would have cover the same distance.

    by using distance formula

    Distance = speed * time

    :

    carla's dist = bernice's distance

    75t = 60 (t+2)

    75t = 60t + 120

    75t - 60t = 120

    15t = 120

    t = 8 hrs
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