SOLUTION: how much alcohol should be added to 1 liter of a 30% alcohol solution to get a 50% solution?
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Question 819226: how much alcohol should be added to 1 liter of a 30% alcohol solution to get a 50% solution?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
.30(1)+x=.5*(1+x)
.3+x=.5+.5x
.5x=.2
x=.4
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