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Mathman couldn't resist the grooving tunes inside and paid his $5.00. He was heading straight for the punch bowl when he noticed a witch mixing it together using a solution which was 60% lizard drool and another that was only 25% lizard drool. If she wanted to make 30 liters of 39% lizard drool, how much of each does she need?

thanks so much!

  • Math - ,

    Add up the amount of drool in each part.

    .60x + .25(30-x) = .39*30
    .60x + 7.5 - .25x = 11.7
    .35x = 4.2
    x = 12

    12L 60%
    18L 25%

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