SOLUTION: A chemist wants to mix three different solutions to create 100 milliliters of a solution that is 15% alcohol. Solution A is​ 10% alcohol, solution B is​ 15% alcohol, an

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Question 1018007: A chemist wants to mix three different solutions to create 100 milliliters of a solution that is 15% alcohol. Solution A is​ 10% alcohol, solution B is​ 15% alcohol, and solution C is​ 30% alcohol. The amount of solution A that is used must be three times the amount of solution B that is used. How many milliliters of each solution should the chemist​ combin
Answer by josgarithmetic(39627)   (Show Source): You can put this solution on YOUR website!
a   volume solution A   concentration 10%
b   volume solution B   conc,  15%
c   volume solution C   conc, 30%

a=3b

100 ml. of solution wanted, 15% concentration result.

This is your starting system:

Immediately simplify the concentration equation.



And substitute for a in the volume and simplified concentration equations.


and one more simplification...


Not a big problem from here. You finish.
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