Kenneth S. answered 09/26/17
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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
You asked (I have edited slightly): In two weeks a family drank 3 gallons of milk; how many gallons would this family drink in 9 weeks?
ANSWER: Use a proportion. 2 wks/3 gallons= 9 wks/x gallons.
Just solve for x!