SOLUTION: how many ounces of 45% alcohol has to be mixed with 14 ounces of 50% alcohol to make 47% alcohol?

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Question 517719: how many ounces of 45% alcohol has to be mixed with 14 ounces of 50% alcohol to make 47% alcohol?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.45x+.5*14=.47(x+14)
x=21