SOLUTION: In mixing a weed-killing chemical, a 40% solution of the chemical is mixed with a 75% solution to get 35 L of a 70% solution. How much of each solution is needed? How many liters o
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Question 919352: In mixing a weed-killing chemical, a 40% solution of the chemical is mixed with a 75% solution to get 35 L of a 70% solution. How much of each solution is needed? How many liters of the 40% solution is needed in the mixture?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
x 75% amount
.75x + .40(35L - x) = .70(35L)
x = .30(35L)/.35 , 75% amount. the 40% amount
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