SOLUTION: How many milliliters of a 18% hydrogen peroxide solution and how many milliliters of a 10% hydrogen peroxide solution should be mixed to get 112 mL of a 12% hydrogen peroxide solut

Question 714727: How many milliliters of a 18% hydrogen peroxide solution and how many milliliters of a 10% hydrogen peroxide solution should be mixed to get 112 mL of a 12% hydrogen peroxide solution?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
x ml. of 10% solution and y ml. of 18% solution, want 12% result, 112 ml. size.

AND

The percentage equation:

System to solve is:

Multiply second equation by 5 and subtract from first equation.

ml. of the 18% hydrogen peroxide solution.

Now, you can find x, using x+y=112.
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