Can someone please help me out? I would really appreciate it. No links or fake answers please. Thanks for understanding. The area of a rectangle is 72 sq. ft. If the length is twice the width, what is the measure of the length of the rectangle?
A. 6 ft
B. 12 ft
C. 18 ft
D. 24 ft

B

Step-by-step explanation:

The area of a rectangle is given by:

Where w is the width and l is the length.

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

We also know that the area is 72 square feet.

Substitute:

Solve for w:

Divide both sides by two:

And take principal square root of both sides:

So, the width is six feet.

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

Our answer is B.

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

b

step-by-step explanation:

the word superfluous means unnecessary