Question 890504: How much of each of a 20% alcohol solution and a 45% alcohol solution must be mixed together to get 30 liters of a 40% alcohol solution? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! How much of each of a 20% alcohol solution and a 45% alcohol solution must be mixed together to get 30 liters of a 40% alcohol solution?
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let x=amt of 20% solution to mix
30-x=amt of 45% solution to mix
..
20%x+45%(30-x)=40%*30
.20x+13.5-.45x=12
.25x=1.5
x=6
30-x=24
amt of 20% solution to mix=6 liters
amt of 45% solution to mix=24 liters
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