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1. There are four digits in the number 7,429.
2. They are seven, four, two and nine in the number 7,429.
3. The number 7,429 is odd. Because the number end in 9.
4. There are three dgits number in the number 264.
5. They are two, six and four in the number 264.
6. The number 264 is even. Because the number end in 4.
Vãi There are a total of $8\times 7\times 6\times 5\times 4=67,\!200$ ways to form a 5-digit number with distinct digits out of 0, 1, 2, 3, 4, 5, 6, 7. We claim that these can be grouped into $\binom{5}{2}\cdot 2=20$ pairs, where each pair adds up to 7777. The pairs are $(0, 7777), (1, 7776), \ldots, (4, 7773)$ and $(5, 7772), \ldots, (7, 7770)$. Thus, the sum of all the possible numbers is $20\cdot 7777=\boxed{155,540}.$ đó ko biết đúng hay sai nhé
1. Cá hồi.
2. Tương ớt.
3. Đại dương.
4. Hãy làm như sau bằng tiếng Anh: Giả sử có tất cả các số có 5 chữ số để sửa kết thúc là 4 và số đó chia hết cho 3 (giải quyết theo 3 cách).
5. Giới thiệu bản thân bằng tiếng Anh.
6. Có bao nhiêu dân tộc ở nước ta?
7. Việt Nam được xếp vào múi giờ trên trục tưởng tượng.
Bạn không thể sử dụng google dịch.
Study well !!
•III,Read about Da Nang City and answer the question :
Da Nang has a population of nearly 800,000 people.The Han River flows through the city.The city part on the east bank is newer and more spacious.The city part on the west bank is more crowed.There are five bridges across the river.The Han River Bridge is the newest one now. The cost of living in Da Nang is the lowest in Central Viet Nam.Da Nang has many beaches.Among them,Non Nuoc beach is one of the most beautiful beaches in the world.But walking in the street on a summer afternoon is not a good idea in Da Nang.There are not many trees so there are not many shadows.It is often very hot at noon .
•1. Is Da Nang a big city ?=> Yes , it is
•2. Are there many people live in Da Nang ? => Yes , there are
•3.Name the famous places in your country or in the world you know
=> Ha Long Bay , Tuan Chau Beach , ...
1 In fact
2 dangerous
3 culture
4 In the name of
5 drops
6 nerves
My name is Nam. I’m twelve years old . There are four people inmy family . We are in the lining room now. There is a table , a couch, a television , a bookshelf , and there are twoarmchair, there stools in the living room.
1What’s his name?
His name is Nam
2.How old is he?
He is twelve years old
3.How many people are there in Nam’s family?
There are four people in Nam’s family
4. where are they now?
They are in the living room now.
5.How many televisions are there in the livingroom?
There is one television in the living room
6.How many stools are there in the living room
There are there stools in the living room.
#Yumi
My name is Nam. I’m twelve years old . There are four people inmy family . We are in the lining room now. There is a table , a couch, a television , a bookshelf , and there are twoarmchair, there stools in the living room.
1What’s his name?
-> His name is Nam .
2.How is is he?
-> He is twelve years old .
3.How many people arethere in Nam’s family?
-> There are four in Nam's family .
4. where are they now?
-> They are in the living room now .
5.How many televisions are there in the livingroom?
-> There is one television in the living room .
6.How many stools are there in the living room
-> There are there stools in the living room .
1. His name is Nam.
2. He is twelve years old.
3. There are four people in his family.
4. They are in the living room now.
5. There is a television in thw living room.
6. There are three stools in the living room.
1. His name is Nam.
2. He is twelve years old. (Từ câu hỏi: How old is he)
3. There are four people in Nam’s family.
4. They are in the living room.
5. There is a television in the living room.
6. There are three stools in the living room.
7,429 has 4 digits
it: 7, 4, 2, 9
264 has 3 digits
it: 2, 6, 4