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March 25, 2017

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Ruth makes a scale drawing of her room. She uses the scale 3/2 in : 1 ft. In the drawing, the dimensions of her room are 18 in by 24 in. What are the actual dimensions of her room?

  • math - ,

    Set up a proportion, cross multiply, and solve for x.

    (3/2)/1 = 18/x
    (3/2)x = 18
    x = 18/(3/2)
    x = 18 * (2/3)
    x = 36/3
    x = 12 feet

    Figure the other dimension the same way.

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