Giải hộ em câu 9 trong hình với ạ

digi pic dưới cho mk ko màu cx đc

a,b,c,d mua một kẹo từ cửa tạp hóa số kẹo a mua= 1/3 tổng số kẹo b,c,d mua. Số kẹo B mua=25% tổng kẹo mà a ,c,d mua số kẹo c mua = 2/5 a,b,d mua D mua ít hơn C 3 viên kẹo hỏi tổng cộng bốn bạn đã mua bao nhiêu?

các a cj nào giỏi toán giúp e vs ạ e cho hay nhất e cảm ơn ạ

Tìm GT lớn nhất,bé nhất: G= `x^{2}` `+` `6x` `+` `4y^{2}` `-` `10y` `+` `5` Khó nên tăng điểm KO bt muộn thế này có ai tl ko nữa

Giải phương trình 2x + 3y² = 4

Name:…………………………… TEST 1A I. Find the word which has a different sound in the part underlined. 1. A. helped B. struggled C. remarked D. watched 2. A. chairs B. suitcases C. things D. calculators 3. A. touched B. talked C. ironed D. brushed 4. A. relaxes B. watches C. misses D. lives 5. A. worked B. cleaned C. watched D. stopped II. Choose the best answers (A,B,C, or D) to complete the sentences 6. She didn’t hear the dog barking outside because she……………..headphones A. wore B. was wearing C. wearing D. is wearing 7. Don’t make noise because our children …………..English in their room. A. are learning B. learns C. learned D. is learning 8. Minh………………football once a week. A. play B. play C. playing D. is playing 9. As my bike………….last week, I……………a lift to school by my classmate A. repaired/gave B. was repairing/had gave C. was repaired/was given D. had repaired/was given 10. There …………a peach tree and some apple trees in our garden. A. is B. are C. have D. has III. Give the correct form of the word in brackets. 11. He went to his house, lied down on the bed, and (sleep) ……………… right away. 12. I (buy) ……………… the ticket yesterday. I am (go) ……………… Dalat tomorrow. 13. Tim (attend) ……………… the meeting at school at the moment. 14. He (have not) ……………… English for 2 years. 15. Our class (start) ……………… at 9am. 16. I always (brush) ……………… my teeth before I go to bed. 17. I (study) ……………… English since I was 21. 18. He was listening to music when his boss (come) ……………… yesterday. 19. I (have do) ……………… all the homework all afternoon. 20. She (wait) ……………… you for all day. 21. He wasn’t working when his boss (call) ……………… him yesterday. 22. She (be) ……………… at her boyfriend’s house yesterday morning. 23. I (talk) ……………… to my father at the moment. 24. We (be) ……………… in Nhatrang on their summer holiday last year. 25. The sun (rise) ……………… in the east. 26. He (meet) ……………… his old friend near his house yesterday. 27. The World Cup (take place) ……………… every four years. 28. They (play) ……………… in the garden at 4 pm yesterday. 29. She was watching a picture while her mother (cook) ……………… soup. 30. Anne was riding her bike to school when Peter (see) ……………… her yesterday. IV. Choose the underlined part in each sentence (A,B,C,or D) that needs correcting 31. Mr. Pike stopped his car, got out and looking around. A B C D 32. Why are you so late? I am waiting here for more than one hour A B C D 33. Why didn’t peter go to school? What did happened to him? A B C D 34. I was listening to the radio when the door bell ring. A B C D 35. I have learned English for I was 10 years old A B C D V. Complete the second sentence so that it has the similar meaning to the first sentence, using the word given. 36. I have not been to an Indian restaurant for ages. =>…………………………………………………………………………………………. 37. How long have Helen and Robert been married? =>…………………………………………………………………………………………. 38. When you phone me, It was my lunchtime. =>…………………………………………………………………………………………. 39. I have not had a Chinese meal for 4 years. =>…………………………………………………………………………………………. 40. David went home before we arrived =>…………………………………………………………………………………………

Nung 9,28 gam hỗn hợp A gồm FeCO3 và một oxit sắt trong không khí đến khối lượng không đổi. Sau khi phản ứng xảy ra hoàn toàn, thu được 8 gam một oxit sắt duy nhất và khí CO2. Hấp thụ hết lượng khí CO2 vào 300 ml dung dịch Ba(OH)2 0,1M, kết thúc phản ứng thu được 3,94 gam kết tủa. Tìm công thức hóa học của oxit sắt.

Vẽ con "panda of ocean" Thêm tí engrish thôi mà các ông sai lên sai xuống :VV Luật như cũ Mod vẽ ưu tiên người que

mọi người giúp em với , em cảm ơn