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准备买新电脑，求推荐

准备买新电脑，求推荐# Hardware - 计算机硬件

a*g2012-05-09 07:05

1 楼

麻烦给出解题步骤，万分感谢！
1. Butch can assemble 6 patio tables per hour. Jose can assemble 4 patio
tables per hour. How many hours will it take them working together to
assemble 60 tables?
2. How many 5% maple syrup and water mixture must be added to 100% pure
maple syrup to produce 5 quarters of syrup that is 10% maple syrup?
3. Oscar wants to fill a pond that irrigates his crops. One water source
fills the pond.1.5 times faster than a second source. When both sources are
used together, the pond is filled in 6 hours. Which equation describes how
fast both sources can fill the pond together?
1/r+2/3r=1/6
1/r-3/2r=1/6
6=1.5r+r
6=r + ½ r

s*d2012-05-09 07:05

2 楼

【以下文字转载自 PhotoGear 讨论区】
发信人: winunixlinux (我要问个问题), 信区: PhotoGear
标题: N+ D90 问题汇报 - 闪光灯没有弹出来, 但闪光了
发信站: BBS 未名空间站 (Mon May 31 11:41:51 2010, 美东)
今天用D90, 全自动状态, 闪光灯没有弹出来, 但是闪光了, 闪光灯处都冒烟了.
在Walmart.com 买的, Return 期 (30 天) 已经过了, 幸好Walmart.com 答应给换一个
, 太险了.
这问题有普遍性没有? 大家遇到过么?

m*d2012-05-09 07:05

3 楼

dell的xps 15
thinkpad 的t520
hp 的 dv6t
这三款机子哪一款比较好？
添加几个主要用途：编译程序，做数据库，看高清电影，玩游戏（不是最前沿的大型游戏，就能满足starcraft II 流畅运行
就好）

p*s2012-05-09 07:05

4 楼

1. How many tables they can assemble in one hour?
2. How many water needed in the 10% maple syrup?
3. How much of the pond can be filled in one hour?

z*n2012-05-09 07:05

5 楼

似乎70年前的闪光灯都是冒烟的，你机器哪年产的？

a*32012-05-09 07:05

6 楼

等一个月，新的就出来了

a*g2012-05-09 07:05

7 楼

Please help!!! Thank you!

【在 p**s 的大作中提到】

: 1. How many tables they can assemble in one hour?
: 2. How many water needed in the 10% maple syrup?
: 3. How much of the pond can be filled in one hour?

s*d2012-05-09 07:05

8 楼

.......

【在 z**n 的大作中提到】

: 似乎70年前的闪光灯都是冒烟的，你机器哪年产的？

n*h2012-05-09 07:05

9 楼

XPS系列丑。
HP质量差。

h*u2012-05-09 07:05

10 楼

1,60/(4+6)=6
2,need syrup totally: 5*0.1=0.5
0.5=x*0.05+y
5=x+y
=>x=4.5/0.95, y=5-x
3,1/r+2/3r=1/6

patio
source
are
how

【在 a*****g 的大作中提到】

: 麻烦给出解题步骤，万分感谢！
: 1. Butch can assemble 6 patio tables per hour. Jose can assemble 4 patio
: tables per hour. How many hours will it take them working together to
: assemble 60 tables?
: 2. How many 5% maple syrup and water mixture must be added to 100% pure
: maple syrup to produce 5 quarters of syrup that is 10% maple syrup?
: 3. Oscar wants to fill a pond that irrigates his crops. One water source
: fills the pond.1.5 times faster than a second source. When both sources are
: used together, the pond is filled in 6 hours. Which equation describes how
: fast both sources can fill the pond together?

p*n2012-05-09 07:05

11 楼

好笑吗？

【在 s*******d 的大作中提到】

: .......

m*d2012-05-09 07:05

12 楼

哪个牌子的新的就出来了？

【在 a*****3 的大作中提到】

: 等一个月，新的就出来了

a*g2012-05-09 07:05

13 楼

太感谢了，终于遇上好人了，麻烦您再帮忙解以下3题。文科老妇女跪谢！
4. The Oxnard Juice Works makes a mango fruit drink from two types of
mangoes. One type costs $3.5 per gallon and the other costs $4.25 per gallon
. How many gallons of each are needed to make 100 gallons of juice that cost
$4.00 per gallon?
1) 25 gallons of $3.5 juice and 75 gallons of $4.25 juice.
2) 40 gallons of $3.5 juice and 60 gallons of $4.25 juice.
3) 331/3 gallons of $3.5 juice and 66/ 2/3 gallons of $4.25 juice.
4) 50 gallons of each type of juice
5. Calandra checks 50 processors in 2 hours. Krystal takes 3 hours to
check 45 processors. How many hours will it take from them to check 100
processors together?
2.5 hours 3.5 hours 5 hours 2 hours
6. Pablo needs to produce 10 liters of a 15% solution from 10% and 25%
solutions. How many liters of 10% solution does he need?
6 2/3 L 5 L 3 1/3 L 1L

【在 h******u 的大作中提到】

: 1,60/(4+6)=6
: 2,need syrup totally: 5*0.1=0.5
: 0.5=x*0.05+y
: 5=x+y
: =>x=4.5/0.95, y=5-x
: 3,1/r+2/3r=1/6
:
: patio
: source
: are

s*d2012-05-09 07:05

14 楼

嗯，2楼的回帖更好笑

【在 p****n 的大作中提到】

: 好笑吗？

m*d2012-05-09 07:05

15 楼

thinkpad呢？

【在 n******h 的大作中提到】

: XPS系列丑。
: HP质量差。

p*s2012-05-09 07:05

16 楼

5. 跟第一题一样
4,6. 鸡兔同笼问题，如果列方程，跟第二题一样
你就是要抄答案，也得弄明白再抄吧

gallon
cost

【在 a*****g 的大作中提到】

: 太感谢了，终于遇上好人了，麻烦您再帮忙解以下3题。文科老妇女跪谢！
: 4. The Oxnard Juice Works makes a mango fruit drink from two types of
: mangoes. One type costs $3.5 per gallon and the other costs $4.25 per gallon
: . How many gallons of each are needed to make 100 gallons of juice that cost
: $4.00 per gallon?
: 1) 25 gallons of $3.5 juice and 75 gallons of $4.25 juice.
: 2) 40 gallons of $3.5 juice and 60 gallons of $4.25 juice.
: 3) 331/3 gallons of $3.5 juice and 66/ 2/3 gallons of $4.25 juice.
: 4) 50 gallons of each type of juice
: 5. Calandra checks 50 processors in 2 hours. Krystal takes 3 hours to

n*h2012-05-09 07:05

17 楼

听说他家屏幕一般，我觉得还不错。
我买的就是t500，可惜被ld剥夺了。

【在 m*********d 的大作中提到】

: thinkpad呢？

a*g2012-05-09 07:05

18 楼

谢谢了。正在较劲脑汁中。。。

【在 p**s 的大作中提到】

: 5. 跟第一题一样
: 4,6. 鸡兔同笼问题，如果列方程，跟第二题一样
: 你就是要抄答案，也得弄明白再抄吧
:
: gallon
: cost

p*n2012-05-09 07:05

19 楼

thinkpad are the best notebooks I have ever used (and I have used a lot at
home and at work).
lz can also consider thinkpad W520 which is slightly more expensive but more
powerful.

w*f2012-05-09 07:05

20 楼

你也太文科了...

gallon
cost

【在 a*****g 的大作中提到】

a*32012-05-09 07:05

21 楼

thinkpad过一个月

a*g2012-05-09 07:05

22 楼

这些题我小时候也会做的，现在老了：（
你能不能解释下1/r+2/3r=1/6 那题？谢谢。
+

【在 w**f 的大作中提到】

: 你也太文科了...
:
: gallon
: cost

s*y2012-05-09 07:05

23 楼

thinkpad的做工比之前是大大不如,
过热暴死的现象也比较频繁

y*i2012-05-09 07:05

24 楼

r means rate
one rate is 1.5 times of another rate, so one rate is r and the other rate
is 1.5r,
and if both work together, it takes 6 hours to fill the pond, therefore
1/r+1/1.5r=1/6
since 1.5=3/2, then 1/1.5=2/3
therefore, 1/r+2/3r=1/6

m*d2012-05-09 07:05

25 楼

多谢各位意见，另外咨询下thinkpad t520和xps 15，请问下价钱在多少比较合适拿下？
官网的价格肯定有水分

m*d2012-05-09 07:05

26 楼

我自己算上各种cb，折扣找到的dell最好的价格是
xps 15 800
Processor 2nd Generation Intel® Core™ i7-2670QM processor (2.
20 GHz with Turbo Boost 2.0 up to 3.10 GHz)
Operating System Genuine Windows® 7 Home Premium, 64bit, English
Display 15.6" HD (1366x768) Truelife WLED Display with Skype-Certified 2.
0MP HD Webcam
Memory3 8GB3 Dual Channel DDR3 SDRAM at 1333MHz
Hard Drive 1TB 5400 RPM SATA Hard Drive
Optical Drive 8X Tray Load CD/DVD Burner (Dual Layer DVD+/-R Drive)
Video Card NVIDIA® GeForce® GT 525M 1GB graphics with Optimus
Warranty 1 Year Premium Protection Package - America's Best Standard
Protection
Weight 6.14 lbs
thinkpad t520 1100多
同等配置，除了硬盘是500g 7200转，显卡是intel hd 3000

p*n2012-05-09 07:05

27 楼

display 15.6" HD (1366x768) too low resolution.
thinkpad t520 price of 1100 is not right. try use the search button on
mitbbs.con to search