SOLUTION:
the length of a rectangle is 3 times its width. the perimeter of the rectangle is 72 cm. find the demensions of the retangle.
Algebra.Com
Question 713744:
the length of a rectangle is 3 times its width. the perimeter of the rectangle is 72 cm. find the demensions of the retangle.
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
P=2L+2W
L=3W
72=2*3W+2W
72=6W+2W
72=8W
W=72/8
W=9 ANS. FOR THE WIDTH.
L=3*9=27 ANS. FOR THE LENGTH.
PROOF.
72=2*27+2*9
72=54+18
72=72
RELATED QUESTIONS
The length of a rectangle is 3 times its width. The perimeter of the rectangle is 72 cm. (answered by Simnepi)
the length of a rectangle is 10 centimeters less than twice its width. The perimeter of... (answered by ReadingBoosters)
The perimeter of a rectangle is 36 meters. If the width is 3 times the length, find the... (answered by ad_alta)
The length of a rectangle is five times its width. if the perimeter of the rectangle is... (answered by nerdybill)
the length of a rectangle is 5 cm more that twice the width. the perimeter of the... (answered by checkley77)
The length of a rectangle is 3 less than 5 times the width. the perimeter is 10 times the (answered by josgarithmetic,MathTherapy,ikleyn,greenestamps)
the perimeter of a rectangle is 156 if the width is 20% the length find the demensions of (answered by ewatrrr)
The length of a rectangle is 3 times its width. If the perimeter of the rectangle is 32... (answered by shweta)
The length of a rectangle is 7 centimeters less than twice its width.The perimeter of the (answered by mathitutor)