Algebra

how much pure acid must be added to 15 ounces of an acid solution which is 40% acid in order to produce a solution which is 50% acid?

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  1. x ounces + 15 ounces = 15+x ounces in jar

    x ounces + .4(15) = .5 (15+x)

    x + 6 = 7.5 + .5 x

    .5 x = 1.5

    x = 3

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    posted by Damon
  2. Thank you

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  3. You are welcome.

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    posted by Damon

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