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A nurse has two solutions that contain different concentrations of a certain medication. One is a 20% concentration and the other is a 5% concentration. How many cubic centimeters of each should he mix to obtain 10 cc of a 9.5% solution?

 Aug 12, 2021
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med in ingredients = med in final solution

 

x = 20 % cc       amount of med  =   .20 x

(10-x) = 5% cc  amount of med  =   .05 (10-x)        summed they equal   .095 (10)

 

.20x      +    .05(10-x)       =   .095 (10)         solve for 'x' = the cc of 20%   

                                                                                          then 5 % cc = 10 - x

 Aug 12, 2021

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