Solve.
-A rectangular room measures 20 ft by 19 ft. Find the cost of installing a strip of wallpaper around the room if the wallpaper cost $0.73 per foot.
A)$28.47
B)$554.80
C)$56.94
D)$277.40

Question

Quizplus · Accepted Answer

The perimeter of the room is:
$2(20 	ext{ ft} + 19 	ext{ ft}) = 78 	ext{ ft}$
Thus the cost of the wallpaper would be:
$78 	ext{ ft} 	imes $0.73/ft = $56.94. To find the cost of installing the wallpaper around the room, we need to find the perimeter of the room and multiply by the cost of the wallpaper per foot.

Perimeter of the room = 2(20 ft) + 2(19 ft) = 40 ft + 38 ft = 78 ft

Cost of wallpapering = 78 ft x $0.73/ft

Cost of wallpapering = $56.94

Therefore, the best choice is C, with a cost of $56.94.

Solve. -A Rectangular Room Measures 20 Ft by 19 Ft. Find