SOLUTION: The length of a rectangle is 3cm greater than it's width. If the perimeter is 46cm, what is the length and width?

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Question 340325: The length of a rectangle is 3cm greater than it's width. If the perimeter is 46cm, what is the length and width?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
For a rectangle,
P=2L%2B2W=46
L%2BW=23
.
.
.
L=W%2B3
Substitute,
W%2B3%2BW=23
2W=20
highlight%28W=10%29cm
Then from eq. 2,
L=10%2B3
highlight%28L=13%29cm