The chemical plant needs to produce a batch of chemical fertilizers. It originally planned to produce 0.65 tons per day and complete the task in 10 days. Now it has produced 2.18 tons. If the rest produces 0.48 tons per day, how many days will it take for the remaining fertilizers?
化工厂要生产一批化肥，原计划每天生产0.65t，10天完成任务，现在已经生产了2.18t，其余的如果每天生产0.48t，剩下的化肥还需要几天？
<gadget id="calculator">0.65 * 10</gadget>
<output>6.5</output>

<gadget id="calculator">6.5 - 2.18</gadget>
<output>4.32</output>

<gadget id="calculator">4.32 / 0.48</gadget>
<output>9</output>

<result>9</result>