SOLUTION: A chef has one vinaigrette that is 40% vinegar and another that is 25% vinegar. How much of each is needed to make 60 L of a vinaigrette that is 30% vinegar?

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Question 203849: A chef has one vinaigrette that is 40% vinegar and another that is 25% vinegar. How much of each is needed to make 60 L of a vinaigrette that is 30% vinegar?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
let x = 40%=20L
let 60-x =25%=40L
.4x+.25(60-x)=60(.3)
.15x=3
x=20