Question 1013882
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How many gallons of 5% acid solution must be mixed with 5 gallons of a 10% solution to obtain a 7% solution
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See the lesson <A HREF=http://www.algebra.com/algebra/homework/word/mixtures/Solving-typical-mixture-problems.lesson>Solving typical word problems on mixtures for solutions</A> in this site.


Similar problem is solved there (Problem 2).


Use it as a sample.


Read it attentively and then solve your problem by substituting your data.