Answer:
![W+0.5D\geq 6.5](https://img.qammunity.org/2020/formulas/mathematics/high-school/m1n6498u2ck23xyww1ptlmhwllgposd1k1.png)
Explanation:
Let W represent the number of games Fabiano should win and D represent the number games of Fabiano should draw.
We have been given that Fabiano scores 1 point for each game that he wins, so points scored in W games will be 1W=W.
We are also told that he scores 0.5 points for each game that ends in a draw. So points scored in D games will 0.5D.
As Fabiano wants to score at least 6.5 points in a major chess tournament, so total number of points scored in W games and D games should be greater than or equal to 6.5.
We can represent this information in an inequality as:
![W+0.5D\geq 6.5](https://img.qammunity.org/2020/formulas/mathematics/high-school/m1n6498u2ck23xyww1ptlmhwllgposd1k1.png)
Therefore, the inequality
represents the number of games Fabiano should win and draw to achieve his goal.