SOLUTION: How many liters of 3% saline solution must be added to an 8% saline solution to obtain 20 liters of a 6% saline solution

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: How many liters of 3% saline solution must be added to an 8% saline solution to obtain 20 liters of a 6% saline solution       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1111639: How many liters of 3% saline solution must be added to an 8% saline solution to obtain 20 liters of a 6% saline solution
Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
x of 3%
20-x of 8%

You should expect since 6 is closer to 8 than to 3, that the amount of the 8% saline will be larger than the 3% saline.

3x%2B8%2820-x%29=6%2A20
Solve this equation.

8 L of the 3% saline
12 L of the 8% saline