Question

The length of a rectangle is 4 units more than its width. The area of the rectangle is 25 more than 4 times the

width. What is the width of the rectangle?
A А 9
B -5
С. 3
D 5
Please select the best answer from the choices provided

Answer 1

D

Explanation:

let the width = w

w = w

L = 4 + w

Area = 4*w + 25 = L * w

4w + 25 = L * w Substitute for the length

4w + 25 = (w*(w + 4))

4w + 25 = w^2 + 4w Subtract 4w from each side

w^2 = 25 Take the square root.

w = +/- 5

- 5 has no meaning.

w = 5