Westonci.ca is your trusted source for accurate answers to all your questions. Join our community and start learning today! Experience the convenience of finding accurate answers to your questions from knowledgeable professionals on our platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

The length of a rectangle is 4 more than twice the width the perimeter is 28 what is the length

Sagot :

perimeter = length + length + width + width
if the perimeter is 28, then:
28 = length + length + width + width

if you know that the length is 4 more than twice the width, then:
length = 4 + 2 x width
(using L as length, and w as width then: L = 4 + 2w)

if you substitute that back into the equation
28 = L + L + w + w
you should get

28 = 4 + 2w + 4 + 2w + w + w
combine the 4's and the ws 
28 = 8 + 6w
subtract both sides by 8
22 = 6w
divide both sides by 6
w = 3 2/3

perimiter=2(legnt+width)
or
p=2(l+w)

l=4+2w
p=28
28=2(l+w)
subsitte 4+2w for l
28=2(4+2w+w)
28=2(4+3w)
28=8+6w
subtract 8 from both sdies
20=6w
divide by 6
20/6=w
aprox
3 2/3=3.666666
so 3 2/3=width