田甜用30元买了40支1元和5角的雪糕分给班里的同学,1元,5角的雪糕各有多少支

Dear Xiaoming,
How are you? My friend, Tiantian will go to London in England. She will study in England for a year. Tiantian is twenty-two years old. She has big eyes and long hair. She is about 170cm tall. She is quiet and clever. She will arrive in London by plane on August 1st. I hope you will be good friends.
Yours,
Xiaohua.

One possible version:
My name is Tian Tian. I’m in Class 4, Grade 9. I’m very brave, outgoing and easygoing. And I am helpful. I like traveling and making friends a lot. My favorite sport is basketball and I am very good at it. I enjoy reading English novels well. In 2012 I won the first price in the school English competition. Xuzhou is my hometown. It is a beautiful and clean city. There are many places of interest. I love it and I know it very well.
I really want to be a student guide for the American friends. I’d like to show them around our school and visit Xuzhou.
My e-mail address is tiantian@163.com.

Dear Rita,
How is everything going? I’d like to introduce my best friend, Tian Tian, to you.
She is 16 years old. She is a lovely girl with a round face and big eyes. She is very kind and easy to get along with. She likes reading and music, and she is especially good at playing the piano. Her favourite subjects are physics and chemistry.
Now she is going to George Spencer School in England to study for one year. I hope you can be good friends. She is arriving at Heathrow Airport at 4 pm on Aug. 1st.
Will you please be kind enough to meet her at the airport? Many thanks.
Best wishes.
Yours,
Li Hua

我来在你写一下吧：
Dear Rita,
Hope everything goes well by your side.
I have a friend called Tian Tian who are going to have a year's study in George Spencer School, She will arrive in Heathrow Airport, London on the 1st, August, around 4 o'clock in the afternoon. She is my best friend, and I hope that you can go and pick her up at the airport if it's convenient for you.
She is 16 years old, thin and tall. She is open-minded, and easygoing, and she like to read and play tennis when she is free.
Hope you two can make good friends.
Thanks.
Li Hua

你是几年级的?我是四年级的,是女生,这是鸡兔同笼问题类型的,让我来教你.
算式：（5乘21-100）除（5-4）=5分 21-5=16次
分析： 假如全部田甜测试成绩全是是5分,总分应该是5乘21=105分,比题目上的总分多了105-100=5分,把一个5分换成一个4分,就少了1分,刚算多了5分,就应该减去5个1分,也就是要换5个4分,然后21-5=16次,就可以了.你听懂了吗?
愿你学习成绩越来越好!
所以5分的又21-5=16次赞同2| 评论

由图可知，物体的像成在了视网膜的前方，是近视眼，需要佩戴凹透镜进行矫正；
为了保护视力保护视力不要在光线太强或太暗的地方读书写字．
故答案为：凹；不要在光线太强或太暗的地方读书写字（答案不唯一）．

全买1元的,钱要差40-30=10元
所以5角的有：10÷（1-0.5）=20支
1元的有：40-20=20支

- a teacher has been in bizet raring to go, who is she? Is our music teacher -- TianTian! Below we took the stage - and handed it to her, please why she play -- today TianTian teacher not only himself...