SOLUTION: A chemist has two prepared acid solutions, one of which is 2% acid by volume, another 7% acid.  How many cubic centimeters of each  should the chemist mix together to  obtain 4

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Question 900208: A chemist has two prepared acid solutions,
one of which is 2% acid by volume,
another 7% acid.  How many cubic centimeters
of each  should the chemist mix together to
 obtain 40 cm3
 of a 3.2% acid solution?

Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Let x and y be the volumes of each acid to use. x is for the 2% acid.

and .
Solve the system for x and y.

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