SOLUTION: What is the length of a rectangle that is 6.5 cm wide and has a perimeter of 32 cm?

Question 217533: What is the length of a rectangle that is 6.5 cm wide and has a perimeter of 32 cm?
Found 2 solutions by rfer, drj:
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
(32-13)/2=9.5 cm
P=2w+2l
Answer by drj(1380) (Show Source): You can put this solution on YOUR website!
What is the length of a rectangle that is 6.5 cm wide and has a perimeter of 32 cm?

Step 1. Perimeter P means adding up all four sides of a rectangle.

Step 2. Let w be the width and L be the length.

Step 3. Then

Step 4. But w=6.5 and P=32, then

Subtract 12 from both sides of the equation to get only L terms on the right side.

Divide by 2 to both sides of the equation

Check P=2*(6.5+9.5)=2*16=32 which is a true statement.

Step 5. ANSWER: The length is 9.5 cm.

I hope the above steps were helpful.

For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.

Good luck in your studies!

Respectfully,
Dr J
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