SOLUTION: how many liters of water do you add to a 51% saline solution to make a 36% saline solution

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Question 789063: how many liters of water do you add to a 51% saline solution to make a 36% saline solution
Answer by Alan3354(69443) About Me  (Show Source):
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how many liters of water do you add to a 51% saline solution to make a 36% saline solution
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If you have S liters of 51%, add L liters of water:
S*51 + L*0 = (S + L)*36
51S = 36S + 36L
15S = 36L
L = 5S/12