SOLUTION: How many mililiter of a 20% solution should be mixed with a 50ml of an 8% solution to get an 18% solution?

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Question 806776: How many mililiter of a 20% solution should be mixed with a 50ml of an 8% solution to get an 18% solution?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.08*50+.2y=.18*(y+50)
y=250