SOLUTION: How many liters (L) of a 30% ACID SOLUTION MUST BE ADDED TO 8 L of an 55% acid solution to obtain a 40% solution?

Question 127355This question is from textbook
: How many liters (L) of a 30% ACID SOLUTION MUST BE ADDED TO 8 L of an 55% acid solution to obtain a 40% solution? This question is from textbook

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = amount of 30% acid solution needed
Let = amount of 55% acid solution
Given is liters
(acid in 30% and 55% solutions)/(total solution) = 40%

liters
12 liters of the 30% solution must be added
check:

OK
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