SOLUTION: A 2% solution of sulfuric acid was mixed with a 12% solution of sulfuric acid to produce an 8% solution. Determine how much 2% solution and how much 12% solution were used to produ

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Question 295833: A 2% solution of sulfuric acid was mixed with a 12% solution of sulfuric acid to produce an 8% solution. Determine how much 2% solution and how much 12% solution were used to produce 10 gallons of 8% solution. Enter the amount of 2% solution in the answer box below.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.02x+.12y=.08(10)
x+y=10
x=4 y=6
4 gallons of 2%