SOLUTION: A printer has ink that is 18% cobalt blue color and ink that is 22% cobalt blue color. How many ounces of each ink are needed to make 2 gallons (256 ounces) of ink that is 20% coba

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Question 916218: A printer has ink that is 18% cobalt blue color and ink that is 22% cobalt blue color. How many ounces of each ink are needed to make 2 gallons (256 ounces) of ink that is 20% cobalt blue color?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
20 is the average of 18 & 22 --> equal amounts