Question

a rectangular porch has a perimeter of 49 ft and a width of 6.5 ft. what is the area of the porch in square ft?

Answer 1

The perimeter is the sum of the two lengths and the two widths:
x + x = 6.5 + 6.5 = 49
Solve this equation for x, the length.

Then multiply the length and the width to find the area.

Answer 2

the length is 18ft

Answer 3

2x + 13 = 49
2x = 36
x = 18
Correct, the length is 18 ft.
The area is:
A = LW = 18 ft x 6.5 ft = 117 ft^2
The answer is: the area is 117 square feet.