SOLUTION: how many liters of a 45% salt solution should be mixed with 9 liters of a 35% salt solution to make a solution that is 36% salt? Round to the nearest hundredth.

Question 395810: how many liters of a 45% salt solution should be mixed with 9 liters of a 35% salt solution to make a solution that is 36% salt? Round to the nearest hundredth.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

Let x represent  the liters of a 45% salt solution 

Question states***

Mixing to form (9L + x) of the 36% solution

 .45x + .35*9L = .36(9L + x)

solving for x

           .09x = .01*9L

              x = .01*9L/.09

              x = 1L



CHECKING our Answer

 .45L + 3.15L = 3.60L = .36*10L 

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