SOLUTION: If the perimeter of a rectangle is 18 ft and the width is 6 ft, find its length. [Hint: The perimeter of a rectangle is given by P = 2L + 2W.]

Question 72791: If the perimeter of a rectangle is 18 ft and the width is 6 ft, find its length. [Hint: The perimeter of a rectangle is given by P = 2L + 2W.]

Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Starting with the formula for the perimeter of a rectangle:
P = 2L+2W and given that P = 18, W = 6, substitute these into the formula and solve for L
18 = 2L+2(6)
18 = 2L+12 Subtract 12 from both sides.
18-12 = 2L
6 = 2L Divide both sides by 2.
6/2 = 2L/2 Simplify.
3 = L or L = 3
RELATED QUESTIONS
If the perimeter of a rectangle is 18 ft and the width is 5 ft, find its length. [Hint:... (answered by sarah_adam,checkley71)

If the perimeter of a rectangle is 18 ft and the width is 5 ft, find its length. [Hint:... (answered by 303795)

If the perimeter of a rectangle is 36 ft and the width is 8 ft, find its length. [Hint:... (answered by don vito)

If the perimeter of a rectangle is 24 ft and the width is 7 ft, find its... (answered by fractalier,checkley71)

If the perimeter of a rectangle is 26 ft and the width is 10 ft find its... (answered by jim_thompson5910)

The length of a rectangle is 2 ft longer than its width. If the perimeter of the... (answered by Alan3354)

If the perimeter of a rectangle is 26 ft and the width is 7 ft, find its length. [Hint:... (answered by fractalier)

If the perimeter of a rectangle is 36 ft and the width is 10 ft, find its length. [Hint: (answered by checkley71)

If the perimeter of a rectangle is 24 ft and the width is 7 ft, find its length. [Hint:... (answered by checkley75)