SOLUTION: I have a 90% solution of DMSO (solvent) that I want to dilute to 70%. (It is currently 90% DMSO and 10% water in the bottle). If I had 1 cup (8 ounces) of this solution in a bowl

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: I have a 90% solution of DMSO (solvent) that I want to dilute to 70%. (It is currently 90% DMSO and 10% water in the bottle). If I had 1 cup (8 ounces) of this solution in a bowl      Log On


   

Question 377282: I have a 90% solution of DMSO (solvent) that I want to dilute to 70%. (It is currently 90% DMSO and 10% water in the bottle). If I had 1 cup (8 ounces) of this solution in a bowl, how much water, in ounces, would I have to add to dilute it to a 70% solution?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
0.90*8 + 0.00x = 0.70(8+x),
7.2 = 5.6 + 0.70x,
1.6 = 0.70x,
x = 2.286 ounces of water must be added.