SOLUTION: Mix 20% alcohol solution with some 45% alcohol. How much of each solution should be used to get 30oz of a 25% alcohol solution?

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Question 873539: Mix 20% alcohol solution with some 45% alcohol. How much of each solution should be used to get 30oz of a 25% alcohol solution?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
This is how mixture problems of the type work:
Mixing two concentrations for known amount of mixture