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QUESTION
A nurse mixes 490 cc of a 40% saline solution with a 10% saline solution to produce a 24% saline solution. How much of the 10% solution should he use?...
A nurse mixes 490 cc of a 40% saline solution with a 10% saline solution to produce a 24% saline solution. How much of the 10% solution should he use?
I need help to understand how to set up this equation
