SOLUTION: The length of a rectangle is twice its width. The perimeter is 30 meters. Find the length and the width.

SOLUTION: The length of a rectangle is twice its width. The perimeter is 30 meters. Find the length and the width.

Algebra.Com

Question 530977: The length of a rectangle is twice its width. The perimeter is 30 meters. Find the length and the width.
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
L = 2W
.
P = 30
P = 2(L+W)
L + W = 15
L = 15-W
.
L=L
so
2W = 15-W
3W = 15
W = 5
.
L = 2W
L = 10
.
Check the perimeter.
2(L-W) = 2(10+5) = 30 m
Correct.
.
Answer: Length = 10 m, and width = 5 m.
.
Done.
RELATED QUESTIONS
The perimeter of a rectangle is 106 meters. The length is five meters more than twice... (answered by rfer)

The length of a rectangle is twice its width. The perimeter is 30. Find its... (answered by rfer,EdenWolf)

The length of a rectangle is twice its width. If the perimeter is 72 meters, find the... (answered by Cromlix)

Pre-Algebra: The length of a rectangle is twice its width. The perimeter is 30 meters.... (answered by Sumit56)

The perimeter of a rectangle is 12 meters. Its length is twice its width. Find the... (answered by checkley77)

If length of a rectangle is twice the width and it's perimeter is 30. What the width and... (answered by fractalier)

The length of a rectangle field is twice its width. Find the length and width of the... (answered by unlockmath)

the perimeter of a rectangle is twice the sum of its length and its width. the perimeter... (answered by solver91311)

the perimeter of a rectangle is twice the sum of its length and its width. the perimeter... (answered by mananth)