SOLUTION: Clear Shine window cleaner is 12% alcohol and Sunstream window cleaner is 30% alcohol. How much of each should be used to make 90 oz of a cleaner that is 20% alcohol.

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: Clear Shine window cleaner is 12% alcohol and Sunstream window cleaner is 30% alcohol. How much of each should be used to make 90 oz of a cleaner that is 20% alcohol.       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 449685: Clear Shine window cleaner is 12% alcohol and Sunstream window cleaner is 30% alcohol. How much of each should be used to make 90 oz of a cleaner that is 20% alcohol.


Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
90x.2=18
m+n=90
.12m+.3n=18
12m+30n=1800
12m+12n=1080
18n=720
n=40
m=50
You need 50 oz. of Clear Shine and 40 oz. of Sunstream to make your mixture..