Question 354271: how many ounces of a 10% alcohol solution must be mixed with 18 ounces of a 15% alcohol solution to make a 13% alcohol solution? Answer by ewatrrr(24785) (Show Source):
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10% alcohol solution must be mixed with 18 ounces of a 15% alcohol solution to make a 13% alcohol solution?
*Note: Let x be the amount of the total 10% solution.
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.10x + .15*18oz = .13(18oz+x)
.15*18oz + .13*18oz = .13x - .10x
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.02*18oz = .03x
12oz = x
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check our answer
1.2 + 2.7 = 3.9
