9/10 jj

luyuice

                

A

C

D

B

E

AA: it is a good decision in moving to a new location.

AI: Financial gain is the most important factor in choosing a career.

Actually I want to say something about the writing, pls see the file, which is edited by some person I do not remember exactly(so sorry). It is nice for this month, at least is proved by today.    -----------------for reference

sorry, i can not upload the file. Anyway, you can find it in the part of writing. It is  statistics of last sept., last last sept., this aug. and this sept.

1.长方形油画加宽为1的画框面积为m,如果加宽为2的面积为m+52,问周厂,答:40

2. what is the value of 3/5 of 1/2 of 7

3.earn $15 for each of the first 8 days, and then double the amount for the next days. how much is earned for 10 days??

4.
                

A

C

D

B

E

Square ABCD, some point E, making AE=DE=AD. Ask: the range of <BCE??

Square ABCD, some point E, making AE=DE=AD. Ask: the range of <BCE??

RC

对某一珍贵的古代物品进行研究,最后结论:真品

I do not remember  others clearly, sorry.

hope everybody is fine!

luyuice

bei mei de

karrol

感谢LZ

flyinglamb

thanks.

redhot99

1.长方形油画加宽为1的画框面积为m,如果加宽为2的面积为m+52,问周厂,答:40。

这个不太明白

米可可

以下是引用redhot99在2006-10-10 10:47:00的发言：

1.长方形油画加宽为1的画框面积为m,如果加宽为2的面积为m+52,问周厂,答:40。

这个不太明白

应该是问油画的周长

设长为a，宽为b

(a+2)(b+2)=m

(a+4)(b+4)=m+52

联立解出(a+b)*2=40

米可可

Square ABCD, some point E, making AE=DE=AD. Ask: the range of <BCE??

算出来两种可能，一个75度，一个15度。range是60。对吗？

karrol

同意,60度

specters

thanks

luyuice

sorry,

the answer to the fourth problem is

A(10-20)--meaning---(10<x<20)

b(20-30)

c(30-40)

D(40-50)

E(50-60)