SOLUTION: how much 60% anti freeze solution must be mixed with a 40% antifreeze solution to produce 20 gallons of a 45% disinfectant solution? Round your answer to the nearest gallon.

Question 353284: how much 60% anti freeze solution must be mixed with a 40% antifreeze solution to produce 20 gallons of a 45% disinfectant solution? Round your answer to the nearest gallon.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
how much 60% anti freeze solution must be mixed with a 40% antifreeze solution to produce 20 gallons of a 45% disinfectant solution? Round your answer to the nearest gallon.
0 solutions
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These are all the same.
h = amount of higher concentration c1
j = amount of lower concentration c2
r = resulting concentration
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h + j = total amount
c1*h + c2*j = r*(h+j)
Sub your numbers and solve.
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You can look at the solved problems and find examples, too.

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