Question

The length of a rectangle is 4 times its width and the perimeter is 150

feet.
What is the width of the rectangle?
A. 15 feet

B. 75 feet

C. 30 feet

D. 60 feet

Answer 1

Y = W = 15 ft.

X= L = 60 ft.

So width is 15 and the length is 60.

Answer 2

Answer: A. 15 feet

Explanation:

The formula used to calculate the perimeter of a rectangle is:

`P=2l+2w`

Where "l" is the lenght of the rectangle and "w" is the width.

You know that the length of this rectangle is 4 times its width. This means that:

`l=4w`

And you know that the perimeter is 150 feet.

Then, you need to substitute
`l=4w` and the value of the perimeter into the formula and solve for "w":

`150=2(4w)+2w\\\\150=10w\\\\w=(150)/(10)\\\\w=15feet`