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1 August, 10:34

A special variety of wallpaper covers only 60 square feet per roll. How many single rolls are needed to paper a room measuring 19' by 12' by 8'6"? Show all work.

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  1. 1 August, 11:31
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    9 rolls

    Step-by-step explanation:

    The perimeter of the room measures 2 (19' + 12') = 62', so the area of the walls is ...

    (62 ft) (8.5 ft) = 527 ft²

    We know that 8 rolls will cover 8*60 ft² = 480 ft², and 9 rolls will cover 540 ft², so we will need 9 rolls to cover the walls.
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