SOLUTION: Find the perimeter of a rectangular board whose length is 3 feet longer than the width. p=2l+2w

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Question 345568: Find the perimeter of a rectangular board whose length is 3 feet longer than the width. p=2l+2w
Found 2 solutions by solver91311, ewatrrr:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If the length is 3 feet longer than the width, then

Then substituting in the formula for perimeter we get:



which simplifies to:




John

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Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Hi
p = 2*l + 2*w (p being the perimeter, l being the length, w the width)
.
the question states the following to be true:
l = w + 3
.
P = 2*(w + 3) + 2*w
.
P = 4*w + 6