<PRE><B>Question 953698</B>
Nail polish remover is essentially a mixture of water and a chemical called acetone. How much pure acetone must be combined with a solution that is 19% acetone to make 27 oz of a 37% solution
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Add A ounces to the 19% solution (S)
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A + S = 27 (total solution)
100*A + 19*S = 27*37 (total acetone)
S = 27 - A
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100A + 19(27-A) = 999
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Solve for A</PRE>