SOLUTION: How much of a 20% benzene solution and how much of a 60% benzene solution should be mixed to make 4 gallons of a 40% benzene solution? Show steps and complete answer please! Thanks

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Question 1152235: How much of a 20% benzene solution and how much of a 60% benzene solution should be mixed to make 4 gallons of a 40% benzene solution? Show steps and complete answer please! Thanks!
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Similar kind already answered
x, the 20% benzene
y, the 60% benzene


E1:



System,

E1-E2,
--------------------------two gallons of each of the benzene starting solutions.


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