the length of a rectangle is four times its width. If the perimeter of the rectangle is 100 cm, find its length and width

Let l = length

Let w = width

l = 4w (length is 4x width)

2l + 2w = 100 (perimeter is two lengths and two widths)

2(4w) + 2w = 100 (substitute)

8w + 2w = 100 (solve)

10w = 100

w = 10

l = 4(10) (plug in)

l = 40

The length of the rectangle is 40in and the width is 10i

Step-by-step explanation:

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent