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March 26, 2017

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Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?

  • mixture problem - ,

    cup size fraction fruit amount fruit
    A____x_______1.0____________x
    B____2_______0.1____________.2
    C___x+2______0.25__________.25(x+2)=x+.2
    so
    .25 x + .5 = x+.2
    .3 = .75 x
    x = .3/.75 = .4 liters

  • mixture problem - ,

    Thank you

  • mixture problem - ,

    1. 10%of 2 liters is .2 liters of pure fruit juice then,
    To make it 25% we must add how much which is .3 liters to 2 liters which will make it 2.3 liters so 25% of 2.3 liters of juice will be 25/100 into 2.3 which is 1/4 into 2300 which is 23 into 25 milliliters
    Which is .5 l approx

  • mixture problem - ,

    20

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