College Algebra Quiz
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MODELING, WORD PROBLEMS & QUANTITATIVE REASONING
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A laboratory technician needs to create 400 mL of a 35% alcohol solution by mixing pure alcohol (100% alcohol) with a 20% alcohol solution. However, the technician accidentally uses a 15% alcohol solution instead of the 20% solution. To correct this and still achieve 400 mL of 35% alcohol solution, how much additional pure alcohol must be added to the incorrect mixture?
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