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1 January, 19:43

Sarah has a floor plan of a room that is 5 inches wide and 6 inches long. The scale of the floor plan is 1 / 3 inch = 2 ft. What is the actual width of the room?

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  1. 1 January, 19:50
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    To answer this question, you could dad a couple things.

    One of them is to set up a proportion with you original scale and then solve for the width.

    1/3 inch:2 ft = 5 inches:x feet

    Use cross multiplication to get:

    2 x 5 = 1/3x

    10 = 1/3x; divide both sides by 1/3

    x = 30 feet

    Another way to do this would be to figure out how many groups of 1/3 there are in 5 inches or 5:1/3. This answer is 15. This means it would be 15 groups of 2 feet or 30 feet.

    The width is 30 feet.
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