Problema Solution
three liters of alcohol water mixture contains 40% alcohol. how much of the alcohol must be evaporatedand replaced by water in order to produce a 30% alcohol mixture?
Answer provided by our tutors
Let 'x' represent the amount of the alcohol must be evaporated and replaced by water.
(3 - x)*0.40 = 0.30*3
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click here to see the equation solved for x
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x = 0.75 L
0.75 liters must be evaporated and replaced by water.