mình học lớp 8 nè kb nha nhưng  cho mình sao nha

có tui đây. ahihi bạn hiền

tui nek kb nha 

A

b

(1) - for

(2) - hear

(3) - their

(4) - students

(5) - as 

(6) - the

(7) - reach

(8) - are

(9) - should

(10) - him

Số học sinh nếu xếp hàng 12; 15; 18 đều dư 7.Gọi số học sinh là a.Ta có:

   (a - 7) chia hết cho 12; 15; 18 hay (a - 7) = BC(12; 15; 18)

   350 (kí hiệu"nhỏ hơn hoặc bằng") a (kí hiệu "nhỏ hơn hoặc bằng") 400

Ta phân tích 12; 15; 18 ra thừa số nguyên tố:

  12 = 2² . 3

  15 = 3 . 5

  18 = 2 . 3²

BCNN (12; 15; 18) =2² . 3² . 5 = 180

BC( 12; 15; 18) = B(180) = {180; 360; 540; ...}

=> a = {187; 367; 547;...}

Mà: 350 (kí hiệu"nhỏ hơn hoặc bằng") a (kí hiệu "nhỏ hơn hoặc bằng") 400 nên a = 367

Vậy số học sinh tham gia diễu hành là: 367 học sinh.

 Học tốt nhé ~!!!!!

con trai 30 / [3-1]=15 mẹ 15*3   con  gái là mẹ * 2/9

- Đánh kẻ chạy đi, không ai đánh người chạy lại.

ý nghĩa: khi mình gặp một lỗi lầm lớn trong đời , "đánh kẻ chạy đi" đánh một người có lỗ nhưng không chịu nhận lỗi đó là một điều sai trái không ai có thể tha thứ nhưng "không ai đánh kẻ chạy lại" biết nhận lỗi và sữa thì không gì chúng ta không thể tha lỗi .Đó chính là lòng bao dung con người .

chúc bạn học tốt

1. My sister often looks at herself in the mirror.

2. Mark made himself a sandwich.

3. This refrigerator defrosts itself.

4. Hoa and I ourselves saw that accident yesterday.

5. Did you pay for yourself?.

6. The children can look after themselves for a few days.

7. Please help me. I can't do it myself.

8. Take care of myself ?.

9. He was very surprised when he looked himself in the mirror.

10. I don't like going to the cinema with other people. I prefer going by myself.

11. The child had no bothers or sisters, so she often had to play by herself.

12. I'm afraid that the children are going to cut themselves on the broken glass.

13. We had a great time in London together. We really enjoyed ourselves.

14. "Can I take another biscuit?"-Of course. Help myself.

15. Don't worry about Linh and me. We can look after ourselves.

16. I gave them a key to our house so that they could let themselves in.

17. Phuong had a great holiday. She enjoyed herself.

18. Please try and understand how I feel. Put yourself in my position.

19. I taught myself to play the guitar. I have never had lessons.

20. An elephant hurt itself when I tried to get out of the zoo yesterday.

21. I don't need any help. I can take care of myself.

22. Sarah and I didn't enjoy ourselves at the disco last night.

23. This exercise isn't very difficult. Do it yourself.

24. My brother can repair the bicycle himself.

1. My sister often looks at herself in the mirror.

2. Mark made himself a sandwich.

3. This refrigerator defrosts itself.

4. Hoa and I ourself saw that accident yesterday.

5. Did you pay for yourself?.

6. The children can look after themselves for a few days.

7. Please help me. I can't do it myself.

8. Take care of myself?.

9. He was very surprised when he looked himself in the mirror.

10. I don't like going to the cinema with other people. I prefer going by myself.

11. The child had no bothers or sisters, so she often had to play by itself.

12. I'm afraid that the children are going to cut themselves on the broken glass.

13. We had a great time in London together. We really enjoyed ourselves.

14. "Can I take another biscuit?"-Of course. Help yourself.

15. Don't worry about Linh and me. We can look after ourselves.

16. I gave them a key to our house so that they could let themselves in.

17. Phuong had a great holiday. She enjoyed hershelf.

18. Please try and understand how I feel. Put yourself in my position.

19. I taught myself to play the guitar. I have never had lessons.

20. An elephant hurt itself when I tried to get out of the zoo yesterday.

21. I don't need any help. I can take care of myself.

22. Sarah and I didn't enjoy ourselves at the disco last night.

23. This exercise isn't very difficult. Do it yourself.

24. My brother can repair the bicycle himself.

ad olm ơi, hum nay trung thu, mem giữ lời hứa vs các bn trên olm ad duyệt đừng xóa nhé. cảm ơn ad nhìu lắm ý ạ.

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Va nhieu y nghia nhe!

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Trung thu vui ve nha!

 hay thì ****

HAPPY NEW YEAR 2017 !!!

Ăn Tết vui vẻ bạn nhé! ^^

happy new year các bn, các bn hãy ủng hộ mọi người học tập nha