SOLUTION: The length of a rectangle is 5 more than the width. If the perimeter is 42 ft, what are the dimensions of the rectangle?

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Question 933336: The length of a rectangle is 5 more than the width. If the perimeter is 42 ft, what are the dimensions of the rectangle?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
L=W%2B5
.
.
.
For a rectangle,
P=2%2A%28L%2BW%29
Substituting from above,
P=2%2A%28W%2B5%2BW%29=42
2W%2B5=21
2W=16
W=8
THen,
L=8%2B5
L=13