Posted by emily on Tuesday, April 23, 2013 at 10:29pm.
An alcohol solution consists of 6 gallons of pure water and x gallons of alcohol, x > 0. Let f(x) be the ratio of the volume of alcohol to the total volume of liquid. [Note that f(x) is the concentration of the alcohol in the solution.]
(a) Find a possible formula for f(x).

math  Henry, Saturday, April 27, 2013 at 4:30pm
a. F(x) = x/(x+6).
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