SOLUTION: A pot contains 4 L of brine at a concentration of 80 g/L. How much of the water should be boiled off to increase the concentration to 200 g/L?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A pot contains 4 L of brine at a concentration of 80 g/L. How much of the water should be boiled off to increase the concentration to 200 g/L?      Log On


   

Question 565965: A pot contains 4 L of brine at a concentration of 80 g/L. How much of the water should be boiled off to increase the concentration to 200 g/L?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
A pot contains 4 L of brine at a concentration of 80 g/L. How much of the water should be boiled off to increase the concentration to 200 g/L?
**
let x=liters of water to be boiled off
80*4=200(4-x)
320=800-200x
200x=480
x=2.4 L (ans)