There are 45 people in the May 1st class to participate in tree planting, and according to the plan, each person will plant 8 trees on average. During the actual tree planting, 5 people did not come, and others still completed the plan. In this way, how many trees are actually planted per person?
五一班有45人参加植树，按计划平均每人要植树8棵．实际植树时有5人没有来，其他人仍完成计划．这样实际每人植树多少棵．
<gadget id="calculator">45 * 8</gadget>
<output>360</output>

<gadget id="calculator">45 - 5</gadget>
<output>40</output>

<gadget id="calculator">360 / 40</gadget>
<output>9</output>

<result>9</result>