数学题、急啊

2025-02-09 08:41:00

推荐回答（4个）

回答1：

自己算，很简单！ In the 10 minute breaks between classes, some students choose to stay indoors, sitting at their desks chatting with their classmates or dozing off. Others, however, prefer to go outdoors to play actively for a while. I am in favor of the latter, of course. The following are my reasons.
On the one hand, having been concentrating on what the teacher says and what they do in class makes both our brains and eyes tired. Playing actively outdoors provides our brains and eyes with entirely different kinds of activities, thus enabling them to have a complete rest. On the other hand, with so many students sitting in the classroom for such a long time, the air inside is certainly not fresh, and sometimes can even be foul which is certainly bad to our health. Playing actively outdoors enables us to breathe a lot of fresh air, thus making us refreshed and re energized very quickly. The last reason is that sitting at the desk for hours on end can be bad to our body. Playing actively outdoors makes us strong and fit.
Therefore, it is strongly recommended that those who stay indoors go out to play actively in the 10 minute breaks between classes. It will surely make you healthy and wise.

回答2：

2134214234325

回答3：

1.(12680-160)/160 (4500-2180)/4500 (4500-2680)/2680
2.8000*(3.96%*3
3.1000*4.41%*5
4.5000*60%*(1+3.81%)*5
5.10000*2.79% 10000+10000*2.79%
银行利率还有一种复利的算法，估计在小学课本里不会要那么复杂的计算

回答4：

1.【2680-180】除以180，自己算，2.【2180-4500】除以4500。。。。。。。。。3.【4500-2680】除以2680.。。。4.8000乘以【1+0.0396】的3次方，再减8000。。。。。。5。自己做去，找方法都差不多的题目。。。。

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