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22 July, 20:49

Kareem wants to wallpaper the back wall of his bedroom. The wall is in the shape of a rectangle. Its length is

13 feet and its width is 12

feet. The wallpaper costs $8

for each square foot. How much will wallpaper cost for the wall?

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Answers (1)
  1. 22 July, 21:16
    0
    The first step in solving this problem is to compute for the area of the rectangular wall. The formula in computing the area of a rectangle is:

    A = LW

    Substituting the given measurements in the problem to the formula:

    A = 13 (12)

    A = 156

    Therefore, the area of the wall is 156 square feet. To compute the wallpaper cost of the wall, you have to multiply the cost per square foot to the total area.

    $8 per square foot x 156 square feet = $1,248

    Therefore, the wallpaper cost for the wall is $1,248
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