Question

Keshawn needs to enclose a pen for her pigs. She only has 200 feet of fencing and wants to enclose the maximum area. She sets up a equation A = l(100-l) to find the length of the pen should be. What does 100 - l represent?

Answer 1

100-A when A=1 is 99

Answer 2

Answer: We get that 100-l represents the breadth of the pen.

Step-by-step explanation:

Since we have given that

Perimeter of rectangle = 200 feet

Let the length of the pen for her pigs be 'l'.

So, According to question,

Perimeter of rectangle = 2(l+b)

$200=2(l+b)\\\\\frac{200}{2}=l+b\\\\100=l+b\\\\100-l=b$

And we know the formula for "Area of rectangle":

$Area=Length\times breadth\\\\A=l(100-l)$

So, we get that 100-l represents the breadth of the pen.