Respuesta :
Hey!
Answer:
Step 1. The perimeter P means adding up all the four sides of a rectangle.
Step 2. Let w be the width.
Step 3. Let 2w be the length
Step 4. Then, P=w+w+2w+2w=126.
Step 5. Solving yields the following steps
w=21
Hope this helps!
~LENA~
Hey there! Welcome to Brainly! Let's solve this together. :)
We can write this as a system of equations. We will have L be the length, and w be the width. We know that the formula for perimeter is 2L+2w=P, so let's plug in our numbers to make a system.
L=2w
2L+2w=126
As you can see, we have a value for L in terms of w. We can substitute this L-value into the second equation, and solve for w.
2(2w)+2w=126
4w+2w=126
6w=126
w=21
Now, we can plug our w-value into the first equation to find L.
L=2(21)
L=42
Therefore, our dimensions are below.
Length: 42 feet
Width: 21 feet
I hope this helps!
