Mai earns $7 an hour mowing lawns. Her friend Priya earns $8.50 an hour. If Mai started with $15, how many hours will it take both friends t

Question

Mai earns $7 an hour mowing lawns. Her friend Priya earns $8.50 an hour. If Mai started with $15, how many hours will it take both friends to make the same amount of money?

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Thanh Hà 3 years 2021-08-22T14:05:50+00:00 2 Answers 5 views 0

Answers ( )

    0
    2021-08-22T14:07:18+00:00

    7x+15=8.5x

    x=10

    Standard form:

    −3

    2

    x + 15 = 0

    Factorization:

    −3

    2

    (x − 10) = 0

    Solutions:

    x = 30

    3

    = 10

    0
    2021-08-22T14:07:20+00:00

    Mai: y = 7x + 15
    Priya: y = 8.5x
    7x + 15 = 8.5x
    15 = 1.5x, x = 10
    It takes 10 hours

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