SOLUTION: If the length of the rectangle is twice the width and the perimeter of the rectangle is 30cm. What is the length and width of the rectangle?
This is all that I've gotten: L=2W
Algebra.Com
Question 291347: If the length of the rectangle is twice the width and the perimeter of the rectangle is 30cm. What is the length and width of the rectangle?
This is all that I've gotten: L=2W and 2L+2W=30
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
You now have 2 equations with two unknowns . Good job. Now solve them !
How do you solve two equations in two unknowns?
Substitution or elimination.
What can you substitute.Substitute 2W for L in the second equation or L for 2W
RELATED QUESTIONS
If the length of the rectangle is twice the width,and the perimeter of the rectangle is... (answered by JulietG)
The perimeter of a rectangle is 64 cm. The length is 4 cm less than twice the width. Find (answered by solver91311)
if a rectangle has a perimeter of 30cm and the length is twice the width what is the... (answered by oscargut)
The length of a rectangle is 6 inches more than three times the width. The perimeter is... (answered by stanbon)
the perimeter of a rectangle is 30cm. if the width is 5cm, what is it's... (answered by Theo,MathTherapy,Alan3354)
The length of a rectangle is twice its width. If the perimeter of the rectangle is 30cm... (answered by checkley77)
the length of a rectangle is 3 less than twice the width the perimeter is 30cm what is... (answered by ReadingBoosters)
If the area of a rectangle is 30cm and the perimeter is 26cm. What is the length and... (answered by josgarithmetic)
If the length of the rectangle is twice the width, and the perimeter of the rectangle is... (answered by stanbon)