SOLUTION: Pure acid is to be added to a 5% acid solution to obtain 95L of 45% solution. What amounts of each should she use?

SOLUTION: Pure acid is to be added to a 5% acid solution to obtain 95L of 45% solution. What amounts of each should she use?

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Question 803468: Pure acid is to be added to a 5% acid solution to obtain 95L of 45% solution. What amounts of each should she use?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Pure acid is to be added to a 5% acid solution to obtain 95L of 45% solution. What amounts of each should she use?
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100x + 5(95-x) = 45*95
95x + 475 = 4275
x = 40 liters of 100% acid

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