SOLUTION: How much water must be evaporated from 400 gallons of a 14% saline solution to get a 40% saline solution?

Algebra ->  Rational-functions -> SOLUTION: How much water must be evaporated from 400 gallons of a 14% saline solution to get a 40% saline solution?      Log On


   



Question 133194: How much water must be evaporated from 400 gallons of a 14% saline solution to get a 40% saline solution?
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
How much salt is in the original solution?
400+%2A+0.14 = 56
The amount of salt doesn;t change. So we need to find the ratio where 56 is 40% of some other number.
56%2Fn+=+0.4
56%2F0.4+=+n
n = 140
In order to increase the salinity from 14% to 40%, you need to remove 400+-+140 = 260 gallons of water