SOLUTION: suppose that x liters of 40% acid solution are mixed with y liters of a 42% solution to obtain 100l of a 41% solution. One equation in a system for solving this problem is x+y=100

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Question 383423: suppose that x liters of 40% acid solution are mixed with y liters of a 42% solution to obtain 100l of a 41% solution. One equation in a system for solving this problem is x+y=100 which one of the following is the other equation?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The other equation is the concentration equation.
40x%2B42y=41%28100%29
20x%2B21y=2050