SOLUTION: Hew many mL of a 75% sugar solution must be mixed with 3mL of pure water to make a 30% solution.

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Question 1048304: Hew many mL of a 75% sugar solution must be mixed with 3mL of pure water to make a 30% solution.
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
Let n be the amount of sugar solution. Then
.75n=.3(3+n)
.75n=.9+.3n
.45n=.9
n=2 mL of 75% solution mixed with 3 mL of pure water makes 5 mL of 30% solution. ☺☺☺☺