SOLUTION: kim needs to add 6% saline solution to an IV bag that contains 20 cubic centimeters of a 10% saline solution. how many cubic centimeters (cc) of 6% saline solution must she add

Question 860180: kim needs to add 6% saline solution to an IV bag that contains 20 cubic centimeters of a 10% saline solution.
how many cubic centimeters (cc) of 6% saline solution must she add to create an 8% solution?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

Let x represent amount of 6% saline solution to add

.06x + .10(20cc) = .08(20cc + x)

.06x + .10(20cc) = .08(20cc) + .08x    |combine Like Terms

         .02(20cc)/.02 = x

                  20cc = x, amount of 6% saline solution to add  

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