SOLUTION: I am in college readiness, and we have a quiz tomorrow except that I do not understand liquid mitures. the problem is how many liters of water must be added to 8 liters of a 40

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Question 359405: I am in college readiness, and we have a quiz tomorrow except that I do not understand liquid mitures. the problem is
how many liters of water must be added to 8 liters of a 40% acid solution to obtain a 10% acid solution?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
8%2A0.40+%2B+x%2A0+=+%288%2Bx%29%2A0.10,
3.2+=+0.8+%2B+0.10x,
2.4+=+0.10x,
x+=+24 liters of water.