Answer:
- width: 51 yards
- length: 195 yards
Explanation:
Let w represent the width of the field in yards. Then 4w-9 is the length. The perimeter is given by the formula ...
P = 2(L+W)
Substituting given values, we have ...
492 = 2((4w-9) +w)
246 = 5w -9 . . . . . . . divide by 2
255 = 5w . . . . . . . . add 9
51 = w . . . . . . . . . divide by 5
4w -9 = 4(51) -9 = 195 . . . . the length of the field
The width is 51 yards.
The length is 195 yards.