A washer and a dryer cost 600 combined. The cost of the washer is 3 times the cost of the dryer. Wha

Discussion in 'Calculator Requests' started by math_celebrity, May 3, 2018.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    A washer and a dryer cost 600 combined. The cost of the washer is 3 times the cost of the dryer. What is the cost of the dryer?

    Let w be the cost of the washer. Let d be the cost of the dryer. We have 2 given equations:
    1. w + d = 600
    2. w = 3d
    Substitute (2) into (1)
    (3d) + d = 600
    4d = 600

    Run it through our equation calculator, to get d = 150.
     

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