SOLUTION: A solution of turpentine and alcohol contains 15 ounces of turpentine and 45 ounces of alcohol. How much pure turpentine must be added to produce a solution that is 75 percent tur
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Question 95886: A solution of turpentine and alcohol contains 15 ounces of turpentine and 45 ounces of alcohol. How much pure turpentine must be added to produce a solution that is 75 percent turpentine?
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
(15/45)*60+x=.75(60+x)
1/3*60+x=45+.75x
20+x=45+.75x
x-.75x=45-20
.25x=25
x=25/.25
x=100 ounces of pure turpentine needs to be added for a 75% solution.proof
20+100=45+(.75*100)
120=45+75
120=120
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