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Mrs brown wants to tile her kitchen floor the tiles are 3 Inches on each side. The floor is 10 feet by 15 feet. How many tiles does she need?

  • Math -

    Wouldn't she need 40 times to run along the 10 ft side?
    Wouldn't she need 60 tiles to run along the 15 ft side?

    So what is 40 x 60 ?


    area of floor = 150 square feet.
    She will need 16 tiles for each square foot.
    So .....

  • Math -

    convert feet to inches:
    10 feet = 120 inches
    15 feet = 180 inches

    get the area of the floor:
    120in x 180in= 21,600in^2

    divide the area of the floor to the area of the tile:

    area of the tile is "9in^2"

    21600in^2 divided by 9in^2 is 2,400 tiles.

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