SOLUTION: if the length of a rectangle is 3 feet less than twice its width, write an expression to show the perimeter of the rectangle.

Question 903892: if the length of a rectangle is 3 feet less than twice its width, write an expression to show the perimeter of the rectangle.
Answer by tutoringisfun(17) (Show Source): You can put this solution on YOUR website!
Good evening student!
I hope this is helpful today.
To Solve this problem we need to know the general perimeter formula for a rectangle P=2L+2W or p=2(L+W)
From the information in the problem we can deduce that L=2W-3. We take this and plug it into the perimeter formula and get P=2(2W-3)+2W. Now we get rid of the parenthesis by using the distributive property and multiplying 2W-3 X 2.
This gives the following P=(2.2W-2.3)+2W. Multiplying this out gives 4W-6+2w. Next, combine like terms. P=6W-6.
p=6w-6 is the final answer.
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