SOLUTION: What quantity of 65 percent acid solution must be mixed with a 30 percent solution to produce 840 mL of a 50 percent solution?

SOLUTION: What quantity of 65 percent acid solution must be mixed with a 30 percent solution to produce 840 mL of a 50 percent solution?

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Question 896162: What quantity of 65 percent acid solution must be mixed with a 30 percent solution to produce 840 mL of a 50 percent solution?

Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
.65x+.3y=.5*840,
x+y=840
x=480, y=360
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