Question 741016
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.]

Find a possible formula for f(x).
:
f(x) = {{{x/((x+6))}}}