Một người đi xe đạp từ A đến B với vận tốc 15km/h. Sau đó một thời gian, một người đi xe máy với vận tốc 30km/h cũng xuất phát từ A đi đến B và nếu không có gì thay đổi thì hai xe sẽ gặp nhau tại B. Tuy nhiên sau khi đi được nửa quãng đường AB, người đi xe đạp giảm bớt vận tốc 3km/h nên hai người gặp nhau tại C cách B 10 km (C nằm giữa A và B). Tính độ dài quãng đường AB.

Giúp mk vs nhá các bạn Mk chỉ có 50 điểm thôi mong các bạn giúp

X. Rewrite the following sentences using the provided word and keep meaning as that of the root one. 33. When did you start the project? → How long _________________________________________________________________ 34. Their wedding will be held in a lovely church. → The church ________________________________________________________________ 35. My father used to play football when he was young. → My father doesn't ___________________________________________________________ 36. Jane gave me a present on my last birthday. → I was _____________________________________________________________________ XI. Complete the second sentence so that it has a similar meaning to the first sentence, using the word in brackets. 37. How many people are there in our school? (there are) ____________________________________________________________________________ 38. This shirt is too dirty for me to wear, (so) ____________________________________________________________________________ 39. I don't find it difficult to get up early in the morning, (am used to) ____________________________________________________________________________ 40. Would you please give me a hand? (mind) ____________________________________________________________________________ Giúp mình với ạ mình cảm ơn

hộ mik vs các bn ei mik cần ngay nhé

Giúp với anh ơi mình đang cần gấp lắm nhe đừng làm bậy bạ nhe

viết 1 đoạn văn từ 5 đến 7 câu phát biểu cảm nghĩ của em về chú bé lượm

I Find the word which has a different sound in the part underlined. 1. A. ended B. loved C. cleaned D. bored 2. A. way B. station C. pavement D. traffic 3. A. seatbelt B. enter C. obey D. present 4. A. cooked B. clicked C. talked D. naked 5. A needed B. developed C. wanted D. included II Choose the best answer (A, B, C or D). 6. I am very interested ………………. learning English. A. to B. in C. at D. for 7. In the party last night, she looked ………………. in a red dress. A. love B. lovely C. loving D. lovelily 8. Is Minh ………………. with the final semester’s result? A. satisfy B. satisfied C. satisfying D. be satisfying 9. The ending of the film is ………………. All audiences are very sad. A. disappointed B. satisfying C. disappointing D. satisfied 10. This is a ………………. film and it makes me cry a lot. A. funny B. moving C. comedy D. excited 11. ………………. he is a CEO and earns a lot of money, he is very mean. A. Because B. Although C. Despite D. Because of 12. This is a(n) ………………. on real life during wars in Vietnam in 1945. A. horror film B. sci-fi C. comedy D. documentary 13. He ………………. the Oscar Prize as the best actress this year. A. wins B. acts C. performs D. directs 14. She is hard working ………………., she isn’t lucky in examinations. A. Therefore B. But C. However D. So 15. She decided to quit this job ………………. the low salary. A. because of B. despite C. because D. although III Find the mistake in each sentence. 16. You should to obey the rules in the cinema by turning off your .................. A B C D mobile phone. 17. Her teaching method is amazed. All the students like it. .................. A B C D 18. Because there was an accident, everyone was fine. .................. A B C D 19. What about go to the park on foot? - It is a good idea. .................. A B C D 20. She performed well in this film. She received a lots of good .................. A B C comment from critics. D IV. Read the passage and fill in the blank with a missing word. There are (21) ……………… types of films: comedy, romance, science fiction, romance, documentary, horror, action, ect. In those kinds, my favorite one is romantic, such (22) ………………. Titanic, The Notebook, Notting Hill, ect. They give us a meaningful lesson about life and love. Sometimes they are moving and make me (23) ……………… a lot. I am also keen (24) ………….. documentaries. They give me such an interesting (25) ……………. . 21. A. few B. a few C. one D. various 22. A. as B. example C. for D. on 23. A. laugh B. smile C. bore D. cry 24. A. in B. on C. with D. about 25. A. games B. knowledge C. song D. meal

1. Viết thêm chữ số 0 vào bên phải phần thập phân của mỗi số thập phân để các số thập phân dưới đây đều có hai chữ số ở phần thập phần. 74,6 ; 284,3 ; 401,25 ; 104.

Bài 2: Đốt cháy hoàn toàn 5,8 gam 1 ankan thu được 8,96 lít khí CO2 (đktc). Tìm công thức phân tử của ankan. Bài 3 : Đốt cháy hoàn toàn 2,2 gam 1 ankan thu được 3,6 gam H2O (đktc). Tìm công thức phân tử của ankan. hepl meeeeeeeeee

IV. Mark the letter A, B, C or D to indicate the underlined part that needs correct in each of the following questions. 14. Julie failed her driving test because she hasn't practised enough. A B C D 15. I don't mind a little inconvenient but this is impossible. A B C D 16. The doctor called this morning while you slept. A B C D V. Mark the letter A, B, C or D to indicate the correct response to each of the following exchanges 17. A. "I'm afraid I can't come to your house-warming party next Saturday. B: “___________________” A. That sounds fun. B. Oh, what a pity I C. That's ridiculous. D. Oh, what a relief! 18. A: "Thank you very much for coming to our wedding!" B:" ___________________" A. Our pleasure! Happy wedding! B. Don't mention it. Go ahead! C. Our pleasure! Good success! D. Don't mention it. Just my luck! VI. Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. 19. Nowadays, many women are aware of gender preferences in favour of boys. A. fail B. ignore C. deny D. acknowledge 20. With great effort, she passed the driving test at the first attempt. A. succeeded in B. failed C. enrolled D. deferred VII. Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. 21. Feel free to bring along your significant other to the party. A. dear B. foe C. mate D. spouse 22. I look up to my father for my whole life. A. depend on B. disapprove C. disrespect D. underestimate