李菲买了这两种本子共40本,付了50元,找回3元.这两种本子各买了几本?练习本0.50笔记本2.30元

In our group ,Lifei usually gets up late.

In our group .LiFei usually get up late on Sunday

解题思路：首先对原理图认真分析，判断电路的连接情况；然后即可连线，一般先连接电池组，再从正极出发连接电器元件，遇到并联时应分支路连线，不能乱画，最后将电路闭合即可，注意在连图时不能出现交叉．
电能表的读数方法：（1）月末的减去月初的示数．（2）最后一位是小数．（3）单位kW•h．

开关为单刀双掷开关，从正极出发到单刀双掷开关，从单刀双掷开关开始分支，1支只有导线，2支只有电阻R₀，两条支路再合起来，共同经过电阻R_x，再回到电源的负极，电压表并联在R_x两端．如图所示：
李菲家4月份用电为：W=643.2kw•h-567.2kw•h=76kw•h．

故答案为：见图，76．

点评：
本题考点： 电功的计算；实物的电路连接．

考点点评： 本题考查的是电能表的正确读数，注意最后一位是小数，以及根据电路图连接实物图，关键是明白电路中各个用电器的连接情况，这是本题的难点也是重点

Good morning,ladies and gentlemen!It is really my honor to have this opportunity for an interview.I hope I can make a good performance today.I'm confident that I can succeed.Now I will introduce myself briefly.I am 26 years old,born in Shandong province.I graduated from Qingdao University.My major is electronics.And I got my bachelor degree after my graduation in the year of 2003.I spent most of my time on study,and I’ve passed CET-6 during my university.And I’ve acquired basic knowledge of my major.It is my long cherished dream to be an engineer and I am eager to get an opportunity to fully play my ability.
In July 2003,I began working for a small private company as a technical support engineer in Qingdao city.Because there was no more chance for me to give full play to my talent,so I decided to change my job.And in August 2004,I left for Beijing and worked for a foreign enterprise as an automation software test engineer.Because I want to change my working environment,I'd like to find a job which is more challenging.Moreover,Motorola is a global company,so I feel I can gain a lot from working in this kind of company.That is the reason why I come here to compete for this position.I think I'm a good team player and a person of great honesty to others.Also,I am able to work under great pressure.I am confident that I am qualified for the post of engineer in your company.
That’s all.Thank you for giving me the chance.

Hi everyone my name is Fei Li, you can call me Faye! I am a student from China. I love traveling, reading and exercising in my spare time and would appreciate an opportunity to get to know friends fro...

560÷（1+60%）=350元
答：一件上衣售价350元

设原价为x,
则由题意得方程0.8x+20+12=x
解得x=160
则李菲上次所买书籍原价为160元~

那要把你的简历发过来才能翻译..要写你擅长什么, 而且要翻译上面提到的乐器方面你达到了什么水平.

1. 设宽为x厘米,那么长为2x厘米 （x+2x）*2=144 x=242. (1) 小红有x张邮票,那么小明有3x张邮票 3x-40=x+40 x=40 3x=120 (2) 小红有x张邮票,那么小明有3x张邮票 ...

虽说你的题目有一点问题,但我还是可以给你一点帮助的!
50-3=47（元）【这步算的是总价】
下面需要用到另一个本子的价钱
应用总价除以另一种本子的价钱加上练习本的价钱
写成算式就是：47/（0.5+另一个本子的价钱）
【如果你的题目就是这样的,那这道题就是错的!】
（看我打了这么多的字,一定要选我呦）

练习本买了25本,笔记本买了15本.