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Marie needs to mix 40 saline solution with a 60 saline solution to create 200 millimeters of a 54% solution. how many mm of each solution must Marie use?

 Sep 22, 2020
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x = 40 % solution           amount of saline    .4x

200-x = 60% solution     amount of saline    .6 (200-x)        summed they equal the final product  .54 (200)

 

.4x       +     .6(200-x)           =      .54(200)        solve for x    this is the ml of 40%   then 60% = 200-x   ml  

 Sep 23, 2020

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