SOLUTION: How much pure acid should be mixed with 6 gallons of a 20% acid solution in order to get a 40% acid solution? To get a 40% acid solution,you need____gallon(s)of pure acid.

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: How much pure acid should be mixed with 6 gallons of a 20% acid solution in order to get a 40% acid solution? To get a 40% acid solution,you need____gallon(s)of pure acid.      Log On

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Question 1066341: How much pure acid should be mixed with 6 gallons of a 20% acid solution in order to get a 40% acid solution?
To get a 40% acid solution,you need____gallon(s)of pure acid.

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x, how much pure acid to add

%28100x%2B20%2A6%29%2F%28x%2B6%29=40


two-part mixture if one part is known
https://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev


%285x%2B6%29%2F%28x%2B6%29=2

5x%2B6=2x%2B12

3x=6

highlight%28x=2%29