Final answer:
The possible dimensions of the sports field are width 50 yards, length 5-3n yards; width 45 yards, length 6-3n yards; and width 40 yards, length 6-4n yards.
Step-by-step explanation:
To find the possible dimensions of the sports field, we need to determine which options satisfy the condition that the width is at least 40 yards. Let's evaluate each option:
- Option A: width 50 yards, length 5-3n yards
This option satisfies the condition since the width is 50 yards, which is greater than 40 yards. - Option B: width 45 yards, length 6-3n yards
This option also satisfies the condition since the width is 45 yards, which is greater than 40 yards. - Option C: width 40 yards, length 6-4n yards
This option satisfies the condition as well since the width is exactly 40 yards. - Option D: width 25 yards, length 10-6n yards
This option does not satisfy the condition since the width is less than 40 yards.
Therefore, the possible dimensions of the sports field are:
- Option A: width 50 yards, length 5-3n yards
- Option B: width 45 yards, length 6-3n yards
- Option C: width 40 yards, length 6-4n yards