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March 25, 2017

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jack usually mows his lawn in 4 hours mariltn can mow the same yard in 7 hours how much time would it take for them to mow the lawn together

  • algebra - ,

    In 28 hours, Jack can do 7 lawns, and mariltn can do 4, so combined, in 28 hrs, they can do 11 lawns.

    rate combined: 11/28 lawns per hour

    time= 1lawn/rate= 28/11 hours.

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