SOLUTION: ow many ounces of a 10 % alcohol solution must be mixed with 18 ounces of a 15 % alcohol solution to make a 11 % alcohol​ solution?

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Question 1154789: ow many ounces of a 10 % alcohol solution must be mixed with 18 ounces of a 15 % alcohol solution to make a 11 % alcohol​ solution?
Found 2 solutions by josmiceli, MathTherapy:
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = ounces of 10% alcohol needed
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72 ounces of 10% alcohol are needed
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check:






OK
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
ow many ounces of a 10 % alcohol solution must be mixed with 18 ounces of a 15 % alcohol solution to make a 11 % alcohol​ solution?
Let amount of 10% alcohol be T

Then we get: .1T + .15(18) = .11(T + 18)

.1T + .15(18) = .11T + .11(18)

.15(18) - .11(18) = .11T - .1T

.04(18) = .01T

 

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