Question 1091942: how much of a 7% citric acid solution must be mixed with 35 liters of a 23% citric solution to make 14% Answer by ikleyn(52781) (Show Source):
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how much of a 7% citric acid solution must be mixed with 35 liters of a 23% citric solution to make 14% ?
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0.07x + 0.23*35 = 0.14*(x+35).
x = "how much of a 7% citric acid solution must be mixed with 35 liters of a 23% citric solution to make 14%" solution.
Simplify and solve for x.
It is just arithmetic.