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Math Help - Percent mixture problems

  1. #1
    Junior Member eah1010's Avatar
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    Question Percent mixture problems

    i need som help on this one Perdent mixture problem...

    Many fruit drinks are actually only 5% real fruit juice. If you let 2oz. of water evaporate frome 12oz. of a drink that is 5% fruit juice, what is the percent concentration of the result?

    I've been working on this problem for a while now, but i still cannot get it... i do not know how to set up the chart.
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  2. #2
    Site Founder MathGuru's Avatar
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    Juice concentration

    If you started with 12oz and 5% was juice, then you had this much juice:

    .05*12oz = 0.6oz of Juice

    and this much water

    .95*12oz = 11.4oz of Water

    now you have lost 2 oz of water so you have 9.4oz of water left. your new concentration is:

    0.6oz Juice/9.4oz water
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  3. #3
    Junior Member eah1010's Avatar
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    Thanx

    thank you so much!
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