Equations with variables on both sides

Discussion in 'Algebra' started by austindee, Jan 31, 2019.

  1. austindee


    Jan 31, 2019
    Likes Received:
    I am looking for the equation for this problem. I know the answer is 105 minutes. I see the answer as a ratio, but I need to set up an equation for the solution.

    Selma's class is making care packages to give to victims of a natural disaster. Selma packs one box in 5 minutes and has already boxed 12 boxes. Her friend Trudy packs one box in 7 minutes and has already boxed 18 boxes. How many more minutes does each need to work in order to have packed the same number of boxes?
    austindee, Jan 31, 2019
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