SOLUTION: Pete and Judy had 200 kilograms of a 20% glycol solution. How much of a 60% solution should they add to get a solution that is 35% glycol?

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Question 371117: Pete and Judy had 200 kilograms of a 20% glycol solution. How much of a 60% solution should they add to get a solution that is 35% glycol?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let A be the amount of 60% solution.
60A%2B20%28200%29=35%28A%2B200%29
60A%2B4000=35A%2B7000
25A=3000
highlight%28A=120%29kg