SOLUTION: how many liters of a 20 percent solution must be mixed with 60 liters of a 90 percent solution to get a 70 percent solution

SOLUTION: how many liters of a 20 percent solution must be mixed with 60 liters of a 90 percent solution to get a 70 percent solution

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Question 375273: how many liters of a 20 percent solution must be mixed with 60 liters of a 90 percent solution to get a 70 percent solution
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let A be the amount of 20% solution added.

liters
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