Question

Shae is covering a wall in her bedroom with wallpaper. The measurement of the wall is 12 ft x 14 ft.

A roll of wallpaper covers 42 square feet. How many rolls should Shae purchase?
A. 4 rolls
B. 10 rolls
C. 12 rolls
D. 14 rolls

Answer 1

12 rolls

Explanation:

Answer 2

4 rolls

Explanation:

Area of the wall = 12 *14 = 168 square feet

1 roll = 42 square feet.

x roll = 168

1/x = 42/168 Cross Multiply

42x = 168 Divide by 42

x = 168/42

x = 4 rolls