How many square feet of wallpaper is needed to cover a wall if it has a perimeter of 50 ft and a height of 10 ft?

area = 10x, where

2(x+10) = 50

To find the square footage of wallpaper needed to cover a wall, we first need to calculate the area of the wall. Since the wall is rectangular, we can use the formula:

Area = length × width

In this case, the length of the wall is equal to the perimeter, which is 50 ft. The width of the wall is its height, which is 10 ft.

Area = 50 ft × 10 ft = 500 square feet

Therefore, you would need 500 square feet of wallpaper to cover the wall.