SOLUTION: Ten liters of a 4% acid solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?

Question 196090: Ten liters of a 4% acid solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = liters of 10% acid solution needed
In words:
(liters of acid in final solution)/(total liters of solution) = 6%

Multiply both sides by

5 liters of 10% acid solution are needed
check answer:

OK
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