Question 1017259
.
How much of a 4% acid solution should be
mixed with 36 liters of an 8% acid solution
to create a mixture that is 7% acid?
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It is a typical mixture word problem.

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, Problem 2.

This problem is very similar to yours.

In this lesson you will find the detailed solution. 

Consider it as a sample. Read it attentively.

Then solve your problem by substituting your data.

In this way you will learn once and for all how to solve problems like this.
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