ALBEBRA

A MOSAIC MUST BE 3 FEET TALL AND 5 FEET WIDE THE LARGER TILES ARE 6 INCHES TALL AND 12 INCHES WIDE HOW MANY TILES SHOULD FITS IN IT

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  1. simplest way to explain:

    the mosaic is 3 ft by 5 ft or
    36 inches by 60 inches
    for a total area of 2160 square inches

    each time covers 6x12 or 72 square inches
    number of tiles = 2160/72 = 30 tiles

    or

    since the length is 60 inches, we can stand 10 tiles in the first row.
    it is 36 inches high, and each tile is 12 inches, so we need 3 rows of 10 tiles or 30 tiles

    or

    we could lay the tiles on their sides, so we can only place 5 tiles in the bottom row,
    but the mosaic is 36 inches high and each tile is 6 inches high, so we can use 6 rows.
    number of tiles = 5x6 or 30 tiles

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