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Answer on Algebra Question for Isabel

Question #12887
A bedroom with a wall area of 6912 square meters is to be covered by wallpaper. If the size of a roll of wallpaper is 16 meters long and 48 meters wide, how many rolls of wallpaper is needed to cover this area?
Expert's answer
The area of a roll of wallpaper is

A = 16*48 = 768m²,

so there needed

N = 6912/768 = 9

rolls to cover the walls.

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