Question

The width of a rectangle is 15 feet more than the length. The perimeter is 290 feet. Find the length and width.

Answer 1

Length: 65

Width: 80

Explanation:

Lets turn it into an algebraic expression. x is the length.

length width

x x+15

2x + 2(x+15) = 290

2x +2x +30 =290

4x = 260

x = 65

65+15 = 80

Answer 2

The length = 65 The width = 80

Explanation:

w = 15^2 = 290

225 =290

290-225 =80

w=80

80 - 15 = 65

l = 65

65+65+80+80=290