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 ounces of a cleaner that is 20% alchohol.

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 ounces of a cleaner that is 20% alchohol.

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Question 449905: Clear Shine window cleaner is 12% alcohol and sunstream window cleaner is 30% alcohol. How much of each should be used to make 90 ounces of a cleaner that is 20% alchohol.

Answer by rwm(914) (Show Source): You can put this solution on YOUR website!
c+s=90
.12c+.3s=.2*90
c=50 s=40

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