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The amount of paint a painter needs is directly proportional to the area of the object he is painting. If a painter needs g gallons of paint for every s square feet that he paints, what is the total amount of paint that he needs to paint a house in terms of g and s?

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  1. If the house has area h, then he will need

    (h/s)*g

    or, think of it like this

    g gal = s ft^2
    g/s is the gal/ft^2 needed

    So, for a house of area h ft^2, he will need h(g/s)

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