SOLUTION: Brine is a solution of salt water. If a tub contains 50 pounds of a 5% solution of brine, how much water must evaporate to change it to an 8% solution?
Algebra ->
Finance
-> SOLUTION: Brine is a solution of salt water. If a tub contains 50 pounds of a 5% solution of brine, how much water must evaporate to change it to an 8% solution?
Log On
Question 294472: Brine is a solution of salt water. If a tub contains 50 pounds of a 5% solution of brine, how much water must evaporate to change it to an 8% solution? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! Brine is a solution of salt water.
If a tub contains 50 pounds of a 5% solution of brine, how much water must
evaporate to change it to an 8% solution?
:
Let x = amt of water evaporated
:
.05(50) = .08(50-x)
2.5 = 4 - .08x
.08x = 4 - 2.5
.08x = 1.5
x =
x = 18.75 lb of water evaporated
:
;
Check; amt of salt remains the same, only the percentage is different, right?
.05(50) = .08(50-18.75)
.05(50) = .08(31.25)
2.5 = 2.5
