用电脑打一份稿件，甲单独打要8小时，乙单独打要10小时，现在甲、乙合打，几小时完成这份稿件的[3/5]？

解题思路：设该型号电脑每台进价为x元，则按进价提高40%的标价是x+40%x，那么打8折销售的价格-进价=盈利，根据这个等量关系列方程，求得解．

设该型号电脑每台进价为x元，
根据题意列方程得：（x+40%x）×0.8-x=420，
解得：x=3500
∴该型号电脑每台进价为3500元．

点评：
本题考点： 一元一次方程的应用．

考点点评： 解题关键是要读懂题目的意思，根据题目给出的条件，找出合适的等量关系，列出方程，再求解．

1、make telephone
2、watch TV
3、Drawing
4、play computer
5、sleeping

Could you tell me some information about computer?

1.设直线y=-x沿y轴移动之后的直线为y=-x+b ( b 即y=-x沿y轴向上运动的单位)
狼堡花园受到水柱的射击,即y=-x+b,经过A(2,2),代入2=-2+b,求出b=4
每分钟向上运动2个单位,一共运动了4个单位,所以是2分钟,即2分钟后狼堡花园受到水柱的射击
直线扫过狼堡花园后攻击结束,即y=-x+b经过C点之后结束攻击
ABCD是正方形,AB=20-2=18,BC=AB=18,B（20,2),所以C(20,20),D(2,20)
将C(20,20)代入y=-x+b,得出b=40,即直线沿y轴向上运动40个单位,就是20分钟之后结束
而狼堡是2分钟后开始受到射击,所以整个持续时间为20-2=18分钟
2.D坐标(2,20)灰太狼受到水枪攻击20=-2+b,b=22
B（20,2）红太狼受到水枪攻击2=-20+b,b=22
所以灰太狼红太狼应该是同时受到水枪攻击

设 现在每台电脑报价x元,则有：
x+3500X1/5=3500
x+700=3500
x=3500-700
x=2800

获一、二等奖共有 90-90X5/9＝40人
其中二等奖有 40÷（1+3）X3＝30人

先不要用电脑，如果是你，你能不能用3次能找到这张牌？
如果你能找到，那么电脑也能找到 ，只是算法问题。
27张分3组，3次就能找到

D

What does you father do with computer?

Sorry,my computer has stopped the music file transmiting automatic,make you not shut down your PC whole night.I will try other ways sent the music to you.
英语不好.匿了.
干嘛不发邮件给他?

解题思路：根据统计表所提供的数据，用纵轴表示数量（单位/台），每格表示10台，表示年份，即可绘制出条形统计图．

根据分析绘制条形统计图如下：
故答案为：

点评：
本题考点： 统计图表的填补．

考点点评： 此题主要考查的是如何根据统计表所提供的数据绘制条形统计图、观察折线统计图并从图中获取信息．注意，绘制条形统计图时要写上标题，标上数据及绘图时间．

that computer is not as good as this one

城琦蝶子,你好：
5×4－3.14×（4÷2）²＝7.44（平方分米）

解题思路：卖出总数的60%后，又运来192台，这时电脑城的电脑台数与原来台数的比是6：7，则即此时电脑的台数比原来少1-67=17；则这270台是原来的60%-17=1635；所以原来有电脑：192÷1635=420（台）

192÷[60%-（1-[6/7]）]
=192÷[60%-[1/7]]
=192÷[16/35]
=420（台）．
答：电脑城里原有电脑420台．

点评：
本题考点： 比的应用．

爸爸送我一台电脑：My father gave me a computer.

打开一个EXCEL表格,然后在任一单元格里输入:
=
然后把算式输入,规则为数学的四则运算规则,所有括号用小括号代替.比如,要算2*[5-4*(9+6/3)],式中/为除,*为乘,则在单元格输入如下公式即可:
=2*(5-4*(9+6/3))
说明:公式输入完后回车则显示结果.
如果单是乘法.就直接输入:=数字*数字,回车即可.如果是连乘可以用函数:
=PRODUCT(数字1,数字2,...,数字2)
详细的可见函数的帮助.当然还有阶乘等.帮助里都有.可细查.

设一台电脑x元,一台主机y元
10x+8y=7000
2x+5y=4120
第二个*5
10x+25y=2060
减去第一个方程
25y-8y=1360
17y=1360
y=80
10x=7000-8y
10x=6360
x=636

School

was

a

computer

game
.

Everyone

is

master
,

is

very

sick
.

All

are

equal
.

Simon

first

Assembly

hosts
.

Amy

is

doing

some

sorting

out
.

As

more

people

like

Simon
.

But

first

Assembly

hosts

students

found

this

game
a
lot
,

can't

quickly

find

what

they

wanted
.

But

in
the
midst
of
them
,

Simon

stands

out
,

because

he

can
at
a

glance

where

everything

they

want
.

Done

some

trimming
and
Amy
are
faster
,

just

connect

the

data

cable
.

After

5

minutes
,

Amy

first

end

Assembly
.

Simon

also

Amy

after

2

minutes
to
complete

the

race
,

others

still

busy

connecting

cable
.

After
the
referee

ruled

that

Amy

Assembly

faster

and

better
,

and

Simon

soon
,

but

even
the
mouse

cable

is

not

connected
,

Amy

finally

won
the
match

面积是：√140π*√35π＝70π
70π/π＝70
圆的半径是：70开平方得√70（cm）

This pair of slippers have deodorization,heighten,prevent slippery and a foot massage function,will also improve,for example in the sole install a pulley let it can roller skating

分析：本题可设每轮感染中平均一台会感染x台电脑,则第一轮后共有（1+x）台被感染,第二轮后共有（1+x）+x（1+x）即（1+x）2台被感染.
设每轮感染中平均每一台电脑会感染x台电脑,依题意得：1+x+（1+x）x=81,
整理得（1+x）2=81,
则x+1=9或x+1=-9,
解得x1=8,x2=-10（舍去）

computer 电脑，名词

设时间是x个月,则
2000+200x=150x+250x 解得
x=10（月）
代入上式可得台笔记本电脑的价格是4000元.

你好，作业帮是APP软件，即安卓软件。只能在手机系统上使用。 你在百度知道问作业平台http://zhidao.baidu.com/prof/education 使用，与作业帮的问答功能是一致的

1. Is there computer on Teacher Li's desk?
2. There are thirty two classrooms in our classroom.
3. Lingling sits beside me, in front of Daming.
4. Is there dining room?
Yes, there is one behind the library.
5. There is no dictionary on the bookcase.

we study Chinese,science,music and computer.

My mother take the computer away from the study room.

分类 division
二级分类 subdivision

allow to play onis used for improve levelwhen dose invent is invented inThis digital camera is used for us to take photos

答案：我的朋友卖给我一台电脑,My friend ( sold ) a computer ( to ) me.
解析：sell sth to sb. 卖某物给某人



希望能帮到你,祝更上一层楼O(∩_∩)O
有不明白的请继续追问(*^__^*)

Bedroom has bed, bed has shoes, wall maps and guitars, kites have windows, there is the bedroom computer tables, tables on the word also has a Computer and beverage lamps, on chair has schoolbags, cha...

The bridge built last yeatr was called wolong. The book published two years ago was written by Moyan.好麻烦哦 不想翻译了

通过在电脑上学习,我成功得解决了难题

Nowadays, some people think that computers, especially computers with Internet access will replace the traditional schools. You can watch tutorials or lectures on computers. You can ask questions and find answers online. You can also search for all kinds of resources online. Even if you need to communicate with a real person, you can use the online chatting systems such as MSN, Yahoo messenger, China's QQ, the new Google Talk or many other programs to see and hear, besides texting, each other from distance. Not to mention there are many programs specialized in online learning or distance education. So, why do you need to make daily trips to schools and sit in classrooms?
There is no doubt that computers are valuable and will become even more valuable and important in education. They open up a wide world that's not limited by the four walls of classrooms. Talking about the Great Wall, or the West Lake, or the highest mountain in the world? You are no longer limited to the texts and your imagination, or the limited resource collection from your school, computers can take you to them throught the Internet. Interested about the world of intects, the outer space, or what was it like in pre-history? You are sure to find some images or videos to expand your knowledge about them. Let alone the lessons and tutors you can get because of computers and the Internet.
However, this does not mean the traditional schools will no longer be necessary. You need a teacher's guidance about what to learn and how to learn. Surrounding yourself with teachers and students will easily get you more motivated about and concentrate on learning. Physically being at school and in a classroom gives you the real sense of being a student. Discussion is the easiest and most effective when it is done face-to-face. A fellow student's help and friendship is more direct and usually more keenly felt. These are some of the advantages of traditional schools which can hardly be replaced by online or distance learning.
Therefore, as we believe comptuers and associated information technologies will afford more learning opportunities and greatly expand the possibility of education, traditional schools will still have their own places, but inevitably with some transformation which is enabled by technology.

你可以 以电脑为多媒体中心 链接家庭智能化家电 组建数字化家庭 方面入手写
数字化家庭 的资料 网上有不少

我听过这样的一个故事,事情是这样的：
门先生一向很霸道,一直站（占）着那位置,动也不动,有一次呢,女主人看到朋友买了个笔记本电脑,除了上网看电视呢,他发现还可以用电脑进行远程监控,原来之前的一段时间,主人交代门先生要守好家门的事情,没有办好,以至于主人丢了自己最喜欢的书包,里面还有女主人很多重要的证件,女主人很生气,对门先生说：”DOOR ,你真的太伤我的心了,我不再需要你了”,门先生因此对这件事情也很伤心,慢慢地抑郁了,经过风吹日晒,他病了,并且倒下了.就这样,女主人没有了守护,于是他想,反正我工作也需要,买了电脑好了,就这样,女主人把电脑先生领回了家,她开始用电脑来监控自己的住所,慢慢地她觉得“我每天要上班,没有那么多的时间来监控,虽然有记录,但是等我发现的时候,家里可能已经被盗了”为了更加方便安全,女主人决定,再给自家安上一扇门,就这样,另一个霸道的门先生又回来了.

降低5800×15％=870元

In recent years, parents have to make such hard decision on how much time should their children spend on watching TV, playing computer games as well as surfing on the Internet.
Some advertisement announce that they can help obese person lose weight without doing any exercise and being on a diet while others claim that thier medicine can cure cancer and AIDS.

有17人既参加电脑培训又参加作文培训,有15人既参加作文培训又参加奥数培训,10人即参加奥数培训又参加电脑培训,这三种培训都参加的有多少人?题是这样的吧!这是奥数的容斥原理的典型 题.作出韦恩图就好理解了,当然上了高中一级学了集合就更好理解了.
参加三种培训的总人数29+21+25=75
参加了两种培训的人数17+15+10=42
减去重复计算的人数75-42=33
三种都参加的人数为45-33=12人.
当然这题条件是有问题的.10人即参加奥数培训又参加电脑培训,三种都参加的人数是不能超过10人的.

（X-900）*(1-20%)=4900 所以X=6925 你想问的是原价是多少吧 原价是6925

开头先向老师道歉.
第二段再说你在教室背书有多么急切,然后说明整个事件,最好说出自己当时有多么犹豫.
第三段说你有多么后悔,多么不应该不上课.
第四段说你身为班干部却没上课,不但没有给同学们做好榜样,还做了坏例子,行为多不好
第五段深刻反思
最后再向老师道歉
希望可以帮你

700.

45-5=40人 这40人是参加小组的.
但是美术小组+电脑小组有 25+30=55人 为什么超过了40人呢?说明里面有的人既参加美术又参加电脑,这些人是
55-40=15人

不好意思,来迟了
Zinnia--missing the friends that are far away foreve

其实你不用这么担心的,你如果自己会读音标,完全可以把发音不一样的地方自己去读,你自己读出来的发音,跟MP3一样还是跟电脑一样,自己就可以判断了.
而且听你的问题,你应该是在模仿他们的语调.等你模仿的很好的时候,你就会发现,英国人跟美国人说话的语调差距很大,有时候你甚至会觉得都不是在读同一个句子,你也会有发音错误的错觉出现（当然也存在读音不同的单词的.）

4000
设定价X,成本Y
X-Y=480
0.8X-Y=-416
解得X=4480
Y=4000
补充：
那么从原价到80%,实际减少20%的售价,相当于480-（-416）=896
那么售价=896/20%=4480
成本=4480-480=4000
施主,我看你骨骼清奇,
器宇轩昂,且有慧根,
乃是万中无一的武林奇才.
潜心修习,将来必成大器,
鄙人有个小小的考验请点击在下答案旁的
"好评"
有其他题目请另外发问,多谢