SOLUTION: White vinegar is a solution of acetic acid in water. There are two strenyhs of white vinegar- 5% solution and a 10% solution. How many ml of each solution must be mixed to make 50

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: White vinegar is a solution of acetic acid in water. There are two strenyhs of white vinegar- 5% solution and a 10% solution. How many ml of each solution must be mixed to make 50       Log On


   

Question 668213: White vinegar is a solution of acetic acid in water. There are two strenyhs of white vinegar- 5% solution and a 10% solution. How many ml of each solution must be mixed to make 50 ml of a 9% vinegar solution?
Answer by stanbon(75887) About Me  (Show Source):
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White vinegar is a solution of acetic acid in water. There are two strenyhs of white vinegar- 5% solution and a 10% solution. How many ml of each solution must be mixed to make 50 ml of a 9% vinegar solution?
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active + active = active
0.05x + 0.10(50-x) = 0.09*50
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5x + 10*50 -10x = 9*50
-5x = -50
x = 10 ml (amt. of 5% solution needed)
50-x = 40 ml (amt. of 10% solution needed)
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Cheers,
Stan H.
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