SOLUTION: How much water should be added to 24ml of 18% alcohol solution to reduce the concentration to 12%?

Question 879643: How much water should be added to 24ml of 18% alcohol solution to reduce the concentration to 12%?

Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
This lesson explains everything you need to know including the general solution:
http://www.algebra.com/tutors/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev

The water is zero percent alcohol, so a term will become zero in the numerator of the equation. The concentration of alcohol changes but the QUANTITY of alcohol stays the same.

(1) Assign your variable or variables;
(2) Form your equation;
(3) Solve your equation.
RELATED QUESTIONS
How much water should be added to 24ML of 16% alcohol solution to reduce the... (answered by stanbon,josmiceli)