出纳员手中有票面为2元、5元的纸币,现要付出47元钱,共有______种付法.

近视的鲸2022-10-04 11:39:541条回答

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爱耍猴子 共回答了12个问题 | 采纳率91.7%
解题思路:出纳员手中有票面为2元、5元的纸币,现要付出47元钱,就要把47转化为5的倍数与2的倍数的和,然后分类讨论,确定具体的付法.

共有5种付法.分别是:
(1)9张5元,1张2元;
(2)7张5元,6张2元;
(3)5张5元,11张2元;
(4)3张5元,16张2元;
(5)1张5元,21张2元.

点评:
本题考点: 有理数的混合运算.

考点点评: 本题考查了有理数的加法.在本题中47只能是5的倍数与2的倍数的和.

1年前

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出纳员手中有票面为2元、5元的纸币,现要付出47元钱,共有______种付法.
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解题思路:出纳员手中有票面为2元、5元的纸币,现要付出47元钱,就要把47转化为5的倍数与2的倍数的和,然后分类讨论,确定具体的付法.

共有5种付法.分别是:
(1)9张5元,1张2元;
(2)7张5元,6张2元;
(3)5张5元,11张2元;
(4)3张5元,16张2元;
(5)1张5元,21张2元.

点评:
本题考点: 有理数的混合运算.

考点点评: 本题考查了有理数的加法.在本题中47只能是5的倍数与2的倍数的和.

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英语翻译I worked for a short time as a cashier(出纳员)at a restaura
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I worked for a short time as a cashier(出纳员)at a restaurant a few months ago,I also helped clean up the tables when it was especially busy. One night,just before Christmas,I found a large black wallet on the floor near one of the tables.I guessed I should check it to find out who was the owner,but I was very busy at the time.Also,I imagined that if there was
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Thinking about it later;I began wondering whether I would have been honest if I had known what was in the wallet!I thought that if I had no way to find the owner and no one returned to claim(认领)it,I might keep it.But it also came into my mind that I actually saved someone’s Christmas plans by finding and returning the wallet. The good feeling it gave me was worth more than anything money could buy.
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几个月前,我曾在一家餐厅做过短时间的出纳员,餐厅忙的时候我还要帮忙收拾桌子. 圣诞节的前一天晚上,我在一张桌子底下发现了一个很大的黑色钱包.我想我应该打开钱包看看以便能找到失主,但那时候我实在太忙了,并且我想如果那钱包里面是很有价值的东西,它的主人会来拿回去的.果然,一个小时以后一位男士回来询问收银员是否有人找到一个钱包.我叫他描述一下他的钱包,结果发现我捡到的那个和他说的一模一样,所以我把钱包还给了他.当我把钱包交到的手上的时候,他很诚心地感谢了我.他问我有没有打开过钱包,然后我说没有.他马上把钱包打开,那里面原来装着差不多800美元的现金.令我惊讶的是他从里面拿出20美元交给我.“这是因为你诚实而得到的酬劳.”他说完以后转过身就走了.
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请教gre数学图表题~~谢谢~注:上周任何时候工作的出纳员的人数都不会超过2人,每个出纳员同一天工作都不超过12小时,且
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注:上周任何时候工作的出纳员的人数都不会超过2人,每个出纳员同一天工作都不超过12小时,且每天出纳员的工作都是持续不断的。

问题:if market X is open 96 hours per week,for how many hours last week were two cashiers working at the same time?

a 49 b 48 c36 d 24 e 12


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选A。
上周所有出纳员一共工作了40+32+26+25+22=145小时,
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这说明96小时中,有两人同时工作的时间为 145-96=49小时。
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英语翻译
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几个月前,我曾在一家餐厅做过短时间的出纳员,餐厅忙的时候我还要帮忙收拾桌子. 圣诞节的前一天晚上,我在一张桌子底下发现了一个很大的黑色钱包.我想我应该打开钱包看看以便能找到失主,但那时候我实在太忙了,并且我想如果那钱包里面是很有价值的东西,它的主人会来拿回去的.果然,一个小时以后一位男士回来询问收银员是否有人找到一个钱包.我叫他描述一下他的钱包,结果发现我捡到的那个和他说的一模一样,所以我把钱包还给了他.当我把钱包交到的手上的时候,他很诚心地感谢了我.他问我有没有打开过钱包,然后我说没有.他马上把钱包打开,那里面原来装着差不多800美元的现金.令我惊讶的是他从里面拿出20美元交给我.“这是因为你诚实而得到的酬劳.”他说完以后转过身就走了.
事后想起这件事;我开始疑惑,如果我知道钱包里面有什么的话我是否还会这么诚实呢!我想如果我没有办法找到失主或者没有人回来认领它的话,我应该会自己收起来.但是我又想到,我找到钱包并把它还给失主实际上也让某人的圣诞计划可以顺利进行.这样想让我觉得很值得,那是一种用多少钱都买不来的感觉.
I worked for a short time as a cashier(出纳员) at a restaurant
I worked for a short time as a cashier(出纳员) at a restaurant a few months ago. I also helped to clean up the tables when it was very busy. One night, just before Christmas, I found a large black wallet on the floor near one of the tables. I guessed I should check it to find out who was the owner, but I was very busy at the time. And I imagined that if there was something valuable(有价值的) in the wallet, the owner would be back. Sure enough, an hour later a man came up to the counter and asked if anyone had found a wallet. I asked him to describe the lost wallet, and after he described it exactly, I gave him the wallet. He expressed his thanks when I handed it to him. He asked me if I had opened it, and when I told him “no”. At once he opened it and showed that it had nearly $ 800 in cash(现金). He took out a twenty-dollar bill and handed it to me and I was amazed at this. “A reward(酬劳) for your honesty,” he said and then turned and walked away.
Thinking about it later, I began wondering whether I would have been honest if I had known what was in the wallet! I thought that if I had no way to find the owner and no one returned to get it, I might keep it. But it also came into my mind that I actually saved someone’s Christmas plans by finding and returning the wallet. The good feeling it gave me was worth more than anything could buy.
小题1:Which of the following is true?
A.The owner of the wallet found a twenty-dollar bill gone.
B.The writer wasn’t surprised when the man gave her a reward.
C.Nothing in the wallet was missing.
D.The man was very, very excited when he got his wallet back.
小题2:The writer returned the wallet to the owner because _______.
A.she thought Christmas was coming
B.the owner came back too soon
C.she didn’t know there was so much money in it
D.as an honest person, she didn’t care much about money
小题3:Which of the following is NOT true?
A.The writer accepted a reward of $ 20.
B.The writer regretted (后悔) that she had returned the wallet.
C.The writer didn’t return the wallet until the owner came back.
D.The writer fell very happy after she returned the wallet.
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小题1:C
小题2:B
小题3:B


小题1:选C。由于作者并未打开钱包,更没有从中取出什么,所以说Nothing in the wallet was missing。
小题2:选B。根据文章最后一段中的Thinking about it later, I began wondering whether I would have been honest if I had known what was in the wallet! I thought that if I had no way to find the owner and no one returned to get it, I might keep it可排除选项C和D。比较选项A和B,再结合文章大意,选B为佳
小题3:选B。此题可用排除法来做:根据第1段最后两句He took out a twenty-dollar bill and handed it to me and I was amazed at this. “A reward for your honesty,” he said and then turned and walked away可知选项A与文章内容相符;选项B的意思是“作者直到失主返回来才将钱包还给他”,这显然与文章内容相符;根据第2段最后一句话The good feeling it gave me was worth more than anything could buy可知,选项D也与文章内容相符。
某公司出纳员小张在办理业务时,约定收入为正,支出为负,今年10月的某一天,他先后办理了七笔业务
某公司出纳员小张在办理业务时,约定收入为正,支出为负,今年10月的某一天,他先后办理了七笔业务
今年10月的某一天,他先后办理了七笔业务:+2000元、-800元、+400元、-800元、+1400元、-1600元、-200元,
(1)若他早上领取备用金4000元,那么下班时应交回公司多少钱?(2)请判断在这七次业务中,小张在第几次业务办理后手中现金最多,第几次业务办理后手中现金最少?(3)若记小张第一次办理业务前的现金为0点,用折线统计图表示这7次业务办理中小张手中现金的变化情况.
第三题 略
君凌山庄1年前0
共回答了个问题 | 采纳率
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tjqdqqmm 共回答了16个问题 | 采纳率81.3%
解题思路:出纳员手中有票面为2元、5元的纸币,现要付出27元钱,就要把27转化为5的倍数与2的倍数的和,然后分类讨论,确定具体的付法.

共有3种付法.分别是:
(1)5张5元,1张2元;
(1)3张5元,6张2元;
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故答案为:3.

点评:
本题考点: 筛选与枚举.

考点点评: 在本题中27只能是5的倍数与2的倍数的和,由此将27裂项即可.