SOLUTION: The length a rectangle is twice that of its width. If the area of the rectangle is 72 square inches, then find the length and width. How do I do this please include details and e

Question 939757: The length a rectangle is twice that of its width. If the area of the rectangle is 72 square inches, then find the length and width.
How do I do this please include details and each step thank you
Someone else answered the question with the answer as w=6
L=12. But I don't understand how they got it if someone can give me the steps or explain it to me please.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The very same example problem has been asked and answered a few times already.

w for width, L for length;
Given is L=2w, and using A for area, A=72.

Formula for area using the assigned variables, wL=A.

Summarizing the list of equations, purely in symbols:
L=2w
wL=A
-
KNOWN: A=72
UNKNOWN: w and L

Solution Process:

Your choice if you want to rationalize the denominator, but knowing that will be a whole number here, rationalizing does not matter much.

means now .

Plug-in the given value and evaluate w and L.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

The length a rectangle is twice that of its width. If the area of the rectangle is 72 square inches, then find the length and width.
How do I do this please include details and each step thank you
Someone else answered the question with the answer as w=6
L=12. But I don't understand how they got it if someone can give me the steps or explain it to me please.

Let width be W
Then length = 2W
Area = LW, and since area = 72 sq in, we get:
2W(W) = 72

W, or width = , or inches
Length: 2(6), or inches
RELATED QUESTIONS
The length of a rectangle is twice that of its width. If the area of the rectangle is 72 (answered by josgarithmetic)
The length of a rectangle is twice that of it's width. If the area of the rectangle is 72 (answered by smarts100%)
The length a rectangle is twice that of its width. If the area of the rectangle is 72... (answered by josgarithmetic)
Am I writing this right? For the written problem. If not can you please correct thank you (answered by mananth)
The length of a rectangle is twice the width. The area is 72 square inches. Find the... (answered by Alan3354)
The area of a rectangle is 18 square inches. The length of the rectangle is twice its... (answered by BurningFlame_marc)
The length of a rectangle is twice its width. Find the dimensions of the rectangle in... (answered by Alan3354)
The length of a rectangle is two inches less than its width. If the area of the... (answered by mananth)
The area of a rectangle is 18 square inches. The length is twice its width. Find the... (answered by Jstrasner)
The area of a rectangle is 18 square inches. THe length of the rectangle is twice its... (answered by rfer)