Question

The floor of a rectangular deck has an area of 600 square feet. The floor is 20 feet wide. How long is the floor?

Answer 1

600/20 = 30. Area = l*w, so if the width is 20 ft. wide, the length would be 30 ft.

Answer 2

600/20= 30

30*20=600 obviously, so since it is 20 feet wide, it must be 30 feet long to complete an area of 600 square feet. Hope this helps.