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25 February, 13:27

A blueprint for a house states that a 6 inch line represent 11 2/3 feet on the actual home. If the house is to be a total height of 20 feet, how many inches high would it be on the blueprint.

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  1. 25 February, 13:35
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    Let x = number of inches high the house would be on the blueprint.

    6 inches/x = 11_2/3 feet/20 feet

    Rewrite 11_2/3 feet as 35/3 feet.

    6/x = (35/3) / 20

    x (35/3) = 6 (20)

    x (35/3) = 120

    35x/3 = 120

    35x = 120 (3)

    35x = 360

    x = 360/35

    Can you finish now?
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