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a man who is 5 feet tall stands 15 feet from a lamppost that is 27 feet high. how far away from the man is the tip of his shadow?

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  1. sorry i forgot to say that i don't need the answer... i need an equation or expression that models this situation.

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  2. s/(15+s) = 5/27

    or

    (15+s)/27 = s/5

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