Problem: The rectangular playing area of a professional football field is 100 yards long. The perimeter of the playing area is 920 feet. The formula for the perimeter of a rectangle is P=2L+2W P=920 L=100 , (here are two ways to solve this problem. You can solve the formula for the unknown variable, then substitute. Or, you can substitute, then solve the resulting equation)

Question

anonymous · Answer

HELP PLEASE

anonymous · Answer

L=100 yards=100*3=300 feet
Let width =x feet
920=2*300+2x
920-600=2x
2x=320
x=320/2=160 feet
width=160 feet