Question

Can someone please help me out? I would really appreciate it. No links or fake answers please. Thanks for understanding.

Answer 1

Answer:

B) 12 feet.

Step-by-step explanation:

The area of a rectangle is given by:

$A=w \ell$

Where w is the width and l is the length.

We are given that the length is twice the width. In other words:

$\ell =2w$

We also know that the area is 72 square feet.

Substitute:

$72=w(2w)$

Solve for w:

$72=2w^2$

Divide both sides by two:

$w^2=36$

And take principal square root of both sides:

$w=\sqrt{36}=6$

So, the width is six feet.

And since the length is twice the width, the length is 12 feet.

Our answer is B.