SOLUTION: A biologist has a 25% solution and a 5% solution of the same plant nutrient. How many cubic centimeters of each solution should be mixed to obtain 20 cc of a 10% solution?

Question 976943: A biologist has a 25% solution and a 5% solution of the same plant nutrient. How many cubic centimeters of each solution should be mixed to obtain 20 cc of a 10% solution?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A biologist has a 25% solution and a 5% solution of the same plant nutrient. How many cubic centimeters of each solution should be mixed to obtain 20 cc of a 10% solution?
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t = amount of 25%
f = amount of f%
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t + f = 20 (total solution)
25t + 5f = 10*20 (total nutrient)
etc
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