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27 April, 08:31

A wall that is 12 feet high on the building is 36 centimeters high on the model. Find the height on the model of a door that is 9 feet high on the building.

I already solved this one. The answer is 27. Im having trouble with part B.

(B) Find the number of centimeters on the model for a window that is 3 feet wide.

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Answers (2)
  1. 27 April, 10:05
    0
    9cm

    Step-by-step explanation:

    3/12 is equal to 1/4 ratio between the size of the window and the building.

    Apply that ratio to the the 36 centimeters to get 36/4 which is equal to 9 centimeters.
  2. 27 April, 10:08
    0
    Answer: 9 centimeters

    Step-by-step explanation:

    Hi, to answer this question we have to apply the same ratio applied to find the height in centimeters of the door.

    12ft/36cm = 9ft/x cm

    12/36 = 9/x

    x = 9 / (12/36)

    x = 27cm

    Using the value of the window's wide instead of the door's height.

    12/36 = 3/x

    x = 3 / (12/36)

    x = 9cm

    Feel free to ask for more if needed or if you did not understand something.
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