Question

The length of a rectangle is four times its width.

Answer 1

Answer:

Pretty Simple!

Step-by-step explanation:

First, what you have to know is that the formula for the area of a rectangle is:

$LW=A$

(Length times Width equals the Area.)

Knowing this, we can input 100yd^2 into the equation.

$LW=100$

Also, we know that the Length is equal to four times the Width.

Meaning that, we can substitute L with 4W.

Thus:

$4W^{2}=100$

So, all we have to do now is solve!

$W=5$

Now, multiply that by 4, and we get 20:

$L=20$

That's it!

Happy Algebra/Geometry!