A rectangular room measures 20 by 7 feet Find the cost of installing a strip of wallpaper around the room if the wallpaper costs $0.98

Perimeter = 2L + 2W

(2*20 + 2*7) *.98 = ?

52.98

To find the cost of installing a strip of wallpaper around the room, follow these steps:

Step 1: Calculate the perimeter of the room.
Perimeter = 2(length + width)

Given: Length = 20 feet, Width = 7 feet

Perimeter = 2(20 + 7)
Perimeter = 2(27)
Perimeter = 54 feet

Step 2: Calculate the cost of wallpaper for the entire perimeter.
Cost = Price per unit × Quantity

Given: Price per unit = $0.98, Quantity = Perimeter

Cost = $0.98 × 54
Cost = $52.92

Therefore, the cost of installing a strip of wallpaper around the room is $52.92.

To find the cost of installing wallpaper around the room, we need to determine the total perimeter of the room and then multiply it by the cost of the wallpaper per foot.

The perimeter of a rectangular room is found by adding up the lengths of all its sides. Given that the room measures 20 by 7 feet, we can find the perimeter as follows:

Perimeter = 2 * (Length + Width)
Perimeter = 2 * (20 + 7)
Perimeter = 2 * 27
Perimeter = 54 feet

Now that we know the perimeter of the room is 54 feet, we can calculate the cost of installing wallpaper around the room:

Cost of wallpaper = Perimeter * Cost per foot
Cost of wallpaper = 54 * $0.98
Cost of wallpaper = $52.92

Therefore, the cost of installing a strip of wallpaper around the room is $52.92.