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    cchapman293's Avatar
    cchapman293 Posts: 2, Reputation: 1
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    #1

    Feb 3, 2011, 07:58 PM
    Translate to an equation and solve
    How many gallons of a 60% solution should Christine add to 30 gallons of a 10% solution to produce a 40% solution?
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #2

    Feb 3, 2011, 08:31 PM

    Being there are rules about homework...

    What do YOU think the answer should be first... and we'll help you with mistakes you may make...

    The site rules for homework.

    https://www.askmehelpdesk.com/other-...-b-u-font.html
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Feb 4, 2011, 09:03 AM

    The product of concentration and volume is what you have to look for.

    For example, let A, B and C be the concentrations of solutions a, b and c respectively.

    Aa + Bb = Cc

    Apply this to your problem now.

    You know A, B and C as concentrations and you know b as volume. Also remember that volumes add too!

    So, a + b = c

    Give it a try!
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