Answer: 250 words per hour
Step-by-step explanation:
To find out how many words Gavino needs to write per hour to finish his 3,000-word assignment in 12 hours or less, we can use the following expression:
\[ \frac{3000}{12} = w \]
This expression represents the total number of words (3000) divided by the total number of hours (12), giving us the number of words Gavino needs to write per hour (w).
Solving this expression:
\[ w = \frac{3000}{12} = 250 \]
So, Gavino needs to write 250 words per hour to finish his assignment in 12 hours or less.