An American football field is a rectangle with a perimeter of 1040 fee. The length is 200 feet more than width. How do you find the width and the length of the rectangular field?

1 Answer
Mar 26, 2018

Answer:

Width=160 ft
Length=360 ft

Explanation:

The perimeter of the field is the total distance around the rectangle, so it is given by: (Length times 2)+(Width times 2)

We know that the length is 200ft longer than the width, hence:
((Width+200) times 2)+(width times 2)=1040, the total perimeter.

This can also be expressed as:

#1040=2(x+200)+2(x)#

Where #x# is the width of the field.

Solving for #x#:
#1040=2x+400+2x#
#640=4x#
#x=160#

So the width is 160 ft.
We knew that the length was 200 ft longer to we just add 200 to the width: (160+200)=360 ft