Medal & Fan!
The perimeter of a rectangle can be represented by the equation: P = 2l + 2w. Mr. Weber must now build a rectangular pen for his new dog, Tebow. Because he wants to place the pen on the side of his yard, he determines that the length needs to be four times longer than the width. Mr. Weber goes to the hardware store and buys 35 feet of fence. Which equation would help Mr. Weber determine how wide his pen would have to be. (Assume that Mr. Weber wants to use ALL of the fence that he purchased.)

The perimeter of a rectangle can be represented by the equation: P = 2l + 2w. Mr.

Question

Medal & Fan!
 The perimeter of a rectangle can be represented by the equation: P = 2l + 2w. Mr. Weber must now build a rectangular pen for his new dog, Tebow. Because he wants to place the pen on the side of his yard, he determines that the length needs to be four times longer than the width. Mr. Weber goes to the hardware store and buys 35 feet of fence. Which equation would help Mr. Weber determine how wide his pen would have to be. (Assume that Mr. Weber wants to use ALL of the fence that he purchased.)

The perimeter of a rectangle can be represented by the equation: P = 2l + 2w. Mr.

anonymous · Answer

l=4w
P=2l+2w=8w+2w=10w
35=10w
w=3.5 feet