SOLUTION: how many milliliters of a 1% solution and of a 10 % solution should be combined to produce 90 milliliter of a 3% solution

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Question 531675: how many milliliters of a 1% solution and of a 10 % solution should be combined to produce 90 milliliter of a 3% solution
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
(1%)(x) + (10%)(90 - x) = (3%)(90)