SOLUTION: Streakfree window cleaner is 12% alcohol and sunstream window cleaner is 30% alcohol. How much of each should be used to make 90oz of a cleaner that is 20% alcohol? (In order to re
Question 879902: Streakfree window cleaner is 12% alcohol and sunstream window cleaner is 30% alcohol. How much of each should be used to make 90oz of a cleaner that is 20% alcohol? (In order to receive credit you must use a system of equations.) Answer by josgarithmetic(39618) (Show Source):