SOLUTION: You need 1275 mL of a 15% alcohol solution. On hand, you have a 10% alcohol mixture and a 95% alcohol mixture. How much of each mixture will you need to obtain the desired solution

Question 943281: You need 1275 mL of a 15% alcohol solution. On hand, you have a 10% alcohol mixture and a 95% alcohol mixture. How much of each mixture will you need to obtain the desired solution?

Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = ml of 10% mix
y = ml of 95% mix
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x + y = 1275
0.10x + 0.95y = 0.15*1275
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put the system of linear equations into standard form
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x + y = 1275
0.10x + 0.95y = 191.25
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answer:
x = 1200
y = 75
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