SOLUTION: The width of a rectangle is 3 feet less than its length. If the perimeter is 22 feet, what is the width?
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Question 235469: The width of a rectangle is 3 feet less than its length. If the perimeter is 22 feet, what is the width?
Answer by Stitch(470) (Show Source): You can put this solution on YOUR website!
The perimeter of a rectangle equals 2L + 2W
Equation 1:
Equation 2:
Given: P = 22
Solution:
---------------
Plug (L - 3) into equation 1 for W, and 22 for P
Rewrite the equation
Combine like terms
Add 6 to both sides
Divide both sides by 4
Now plug the 7ft into equation 2 for L
----------------
Check your answer using the values in equation 1
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