SOLUTION: A solution contains 15% chemicals. How many litters of the solution must be mixed with another solution with 10% chemicals to make 10 litters of solution containing 12% chemicals?

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Question 845894: A solution contains 15% chemicals. How many litters of the solution must be mixed with another solution with 10% chemicals to make 10 litters of solution containing 12% chemicals?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
This typical mixture question can be well-understood in this lesson:

http://www.algebra.com/tutors/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev

The question in general is solved in the lesson.