SOLUTION: 20 ml that is 10 percent acid, how much pure water must be added to get a solution that is 3 percent acid?

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Question 453472: 20 ml that is 10 percent acid, how much pure water must be added to get a solution that is 3 percent acid?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
20x.1=2
.03x=2
x=2/.03=66.6666667
66.6666667-20=46.66666667
You need to add 46-2/3 ml of pure water to get the required mix..