SOLUTION: How many ounces of a 40% alcohol solution must be mixed with 3 ounces of a 45% alcohol solution to make a 41% alcoholic solution?

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Question 963849: How many ounces of a 40% alcohol solution must be mixed with 3 ounces of a 45% alcohol solution to make a 41% alcoholic solution?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
z ounces of 40% alcohol.

%2840z%2B3%2A45%29%2F%28z%2B3%29=41
Solve for z.