SOLUTION: Solution A is 30% alcohol and solution B is 60% alcohol.How much of each solution is needed to make 100 liters of a solution that is 45% alcohol?

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Question 377544: Solution A is 30% alcohol and solution B is 60% alcohol.How much of each solution is needed to make 100 liters of a solution that is 45% alcohol?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.A%2BB=100
.
.
.
30A%2B60B=45%28100%29
2.A%2B2B=150
Subtract eq. 1 from eq. 2,
A%2B2B-A-B=150-100
highlight%28B=50%29liters
Then from eq. 1,
A%2B50=100
highlight%28A=50%29liters