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25 February, 14:25

Julie and her classmates are holding a car wash to raise money for a trip to England next summer. During the first 32 minutes, they have washed a total of 5 cars. If the class continues to wash cars at this rate, about how many will they have washed after 8 hours?

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Answers (2)
  1. 25 February, 14:43
    0
    75 cars

    Step-by-step explanation:

    Convert the 8 hours into minutes, 480.

    Divide by the 32 minutes, 15.

    Multiply by the number of cars in 32 minutes, 5.

    Answer is 75.
  2. 25 February, 14:44
    0
    75 cars.

    Step-by-step explanation:

    Let's use a ratio to solve:

    minutes : cars

    32 : 5

    160 : 25

    320 : 50

    480 : 75

    Since 480 minutes is 8 hours, and they get 75 cars washed in 480 minutes, then they have washed 75 cars in 8 hours.
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