SOLUTION: a chemist needs 6 liters of 20 percent acid solution. he has available 25 percent acid solution and a 10 percent acid solution. how much of each solution should be mixed in order t

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Question 415079: a chemist needs 6 liters of 20 percent acid solution. he has available 25 percent acid solution and a 10 percent acid solution. how much of each solution should be mixed in order to create this 20 percent solution
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
percent ---------------- quantity
25 ---------------- x
10 ---------------- 6-x
20.00% ---------------- 6
...
25x+10(6 -x)=20*6

25x+60-10x=120
25x-10x =120-60
15x=60
/15
x=4 liters 25% solution
2 liters 10% solution