SOLUTION: How many ounces of a 6% iodine solution needs to be added to 12 ounces of a 10% solution to create a 7% solution?

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 Question 247528: How many ounces of a 6% iodine solution needs to be added to 12 ounces of a 10% solution to create a 7% solution?Answer by checkley77(12569)   (Show Source): You can put this solution on YOUR website!.06x+.10*12=.07(12+x) .06x+1.2=.84+.07x .06x-.07x=.84-1.2 -.01x=-.36 x=-.36/-.01 x=36 ounces of 6% iodine is used. Proof: .06*36+.10*12=.07(12+36) 2.16+1.2=.07*48 3.36=3.36