SOLUTION: How much 5% alcohol must be mixed with 10% alcohol to get 2000 ml of 6% alcohol?>

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Question 340434: How much 5% alcohol must be mixed with 10% alcohol to get 2000 ml of 6% alcohol?>
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let A be the amount of 5% alcohol and B the amount of 10% alcohol?
1.A%2BB=2000
.
.
.
5A%2B10B=6%282000%29
5A%2B10B=12000
2.A%2B2B=2400
Subtract eq. 1 from eq. 2,
A%2B2B-A-B=2400-2000
highlight%28B=400%29ml
Then from eq. 1,
A%2B400=2000
highlight%28A=1600%29ml