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July 25, 2016

Homework Help: Algebra

Posted by Amber on Monday, January 14, 2008 at 10:28pm.

A chemist needs to mix a solution containing 30% insecticide with a solution containg 50% insecticide to make 200L of a solution that 42% insecticide. How much of each solution should she use?

dealing with- graphing, subst., and elimin.

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