SOLUTION: how much 60% antifreeze solution must be mixed with a 40% antifreeze solution to produce 25 gallons of a 52% disinfectant solution.

SOLUTION: how much 60% antifreeze solution must be mixed with a 40% antifreeze solution to produce 25 gallons of a 52% disinfectant solution.

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Question 353498: how much 60% antifreeze solution must be mixed with a 40% antifreeze solution to produce 25 gallons of a 52% disinfectant solution.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
let x = # gallons 60% antifreeze sol'n that has to be added. Then
,
,
,
.
Therefore 15 gallons of 60% antifreeze has to be added.
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