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OpenStudy (anonymous):
A Biologist mixes a 15% salt solution with a 35% salt solution to create 20 mL of a 22% salt solution.Which equation can you use to find the amount of 15% salt solution that is used? Plz show work. ~~~ A) 0.15x=0.35(20-x)=0.22(20) B) 0.35x+0.35+0.15(20-x)=0.15(20) C) 0.22(0.35x-0.15x)=0.22(20) D) 20(0.35x-0.15)=0.22(0.35-0.15)
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