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How much of a 6 percent solution and a 12 percent solution would use to make 240 milliliters of a 7 percent electrolyte?
Wiki User
∙ 12y ago
x+y = 240
0.06x + 0.12y =240(0.07) = 16.8
0.06x + 0.12(240 - x) = 16.8
0.06x + 28.8 - 0.12x = 16.8
-0.06x = -12
x = 200.......6% solution
y = 40........12% solution
Wiki User
∙ 12y ago
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