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July 7, 2015

Homework Help: algebra

Posted by sh on Sunday, October 21, 2012 at 10:07pm.

Nurse erika needs to prepare 12 liters of a 10% saline solution. The stockroom only has 7 % and 15% saline solutions. How much of each solution should erika mix together to get 12 litres of a 10% saline solution

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