SOLUTION: elise everly is preparing 15 liters of a 25% saline solution. Elise has two other saline solutions with strengths of 40% and 10%. Find the amount of 40% solution and the amount o

Question 476474: elise everly is preparing 15 liters of a 25% saline solution. Elise has two other saline solutions with strengths of 40% and 10%. Find the amount of 40% solution and the amount of 10% solution she should mix to get 15 liters of a 25% solution.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
percent percentage ---------------- quantity
Alcohol I 40 ---------------- x liters
Alcohol II 10 ---------------- 15 - x liters
Mixture 25.00% ---------------- 15

40 x + 10 ( 15 - x ) = 25 * 15

40x+150-10x=375
40x-10x=375-150
30x= 225
/30
x=7.5 liters 40.00% Alcohol I
7.5 liters 10.00% Alcohol II
m.ananth@hotmail.ca
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