SOLUTION: You obtain 15 grams of a 5% saline solution from a mixture of a 3% saline solution and an 8% saline solution. How much of the 3% saline solution is used in the mixture?

SOLUTION: You obtain 15 grams of a 5% saline solution from a mixture of a 3% saline solution and an 8% saline solution. How much of the 3% saline solution is used in the mixture?

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Question 812779: You obtain 15 grams of a 5% saline solution from a mixture of a 3% saline solution and an 8% saline solution. How much of the 3% saline solution is used in the mixture?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
15*.05=.03x+.08y,
x+y=15
x=9., y=6.

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