Mingming scored 89 points in Chinese, 97 points in mathematics, and 99 points in English in the final exam last semester. What is the average score of these three subjects?
明明上学期期末考试，语文得了89分，数学得了97分，英语得了99分，明明这三科的平均成绩是多少？
<gadget id="calculator">89 + 97 + 99</gadget>
<output>285</output>

<gadget id="calculator">285 / 3</gadget>
<output>95</output>

<result>95</result>