SOLUTION: a chemist needs 60 milliliters of a 42% solution but has only 36% and 54% solutions available. Find how many milliliters of each solution should be mixed to get the desired solutio

Question 859846: a chemist needs 60 milliliters of a 42% solution but has only 36% and 54% solutions available. Find how many milliliters of each solution should be mixed to get the desired solution?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

 .54x + .36(60-x) = .42(60ml)

         .18x = .06(60ml)

            x = .06(60ml)/.18

find x for the 54% solution and then (60-x)for the 36% solution 

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