SOLUTION: A photographer wants to mix 14 liters of a 7% acetic acid solution with a 12% solution to get a 9% solution. How many liters of 12% solution must be added?
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Question 942381: A photographer wants to mix 14 liters of a 7% acetic acid solution with a 12% solution to get a 9% solution. How many liters of 12% solution must be added?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
More generally, this lesson discusses the same thing.
http://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev
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