SOLUTION: Using the perimeter formula for a rectangle and the fact that the perimeter should be 48 feet, solve for the length to write an equation for the length of the rectangle in terms of

Algebra.Com
Question 129461This question is from textbook Fundamentals of Algebric Modeling
: Using the perimeter formula for a rectangle and the fact that the perimeter should be 48 feet, solve for the length to write an equation for the length of the rectangle in terms of the width.
My answer is:
P = 2L + 2W
48 = 2L + 2W
48 = 2(12) + 2(12)
48 = 24 + 24
P = 48 This question is from textbook Fundamentals of Algebric Modeling

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
No, you were on the right track and then you solved the equation.
Where did the magic number 12 come from??
You needed to find the length as a function of width.


Here is an equation with length and width in it.
Re-arrange this equation and you'll have your answer.




This equation is the length as a function of width for a rectangle of perimeter 48.
RELATED QUESTIONS

What would be the Length, Width, and Perimeter of a rectangle with the Area of 48 square... (answered by richard1234)
a rectangular rug has an area of 96 square feet and a perimeter of 4o feet. The length is (answered by Boreal)
Suppose that the width of a rectangle is 5 inches shorter than the length and that the... (answered by checkley77)
2) Suppose that the width of a rectangle is 5 inches shorter than the length and that the (answered by unlockmath)
using the appropriate perimeter formula, find the perimeter of the rectangle below in... (answered by Earlsdon)
using the appropriate perimeter formula, find the perimeter of the rectangle below in... (answered by rfer)
You want to fence in a rectangular area, but first you must determine the dimensions of... (answered by solver91311)
Suppose that the width of a rectangle is 5 inches shorter than the length and that the... (answered by rfer)
The formula for the perimeter of a rectangle is P = 2W + 2L. What is the width of a... (answered by stanbon)