SOLUTION: One alcohol solution contains 10% alcohol and another contains 25% alcohol. How much of each should be mixed together to obtain 2 gallons of a 13.75% alcohol solution?

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Question 1097391: One alcohol solution contains 10% alcohol and another contains 25% alcohol. How much of each should be mixed together to obtain 2 gallons of a 13.75% alcohol solution?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
x for the 10%
2-x for the 25%

10x%2B25%282-x%29=%2813%263%2F4%292