SOLUTION: How many liters of pure water must be added to 5 liters of 8% acid solution to make a 4% acid solution?

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Question 749571: How many liters of pure water must be added to 5 liters of 8% acid solution to make a 4% acid solution?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
5*.08=(.04)*(5+x)
x=5