Giải bài này giúp mình với ạ. Giải toán bằng cách lập hệ phương trình.

Chủ tịch hồ chí minh là tấm gương sáng về tinh thần tự học. Với người, nguyên lí và phương thức học được tóm gọn như sau:"học ở trường học trong sách vở học lẫn nhau và học dân " Hãy viết một đoạn văn nghĩ luận ngắn trình bày suy nghĩ của em về nguyên lí và phương thức học tập của bác

Mộc ng giúp em bài 2,3,4 dc ko ạ

Ai giải nhanh hộ mk vs Mk cần gấp

Tìm các số nguyên x sao cho : a) -7 là bội của x+8 b) x-2 là ước của 3x-13

Do kcj h if đủ tự tin và 2 con người ta trước đây có lẽ vì thế có ai biết được những gì mà

1They ‘d be hurt if I ………………. a. don’t go b. didn’t go c. hadn’t gone d. wouldn’t go. 2If we took the 6: 30 train, we…………too early. a. would have arrived b. arrived c. will arrived d. would arrive. 3If I had known you were in hospital, I …………to see you. a. will go b. would go c. went d. would have gone. 4If I …………., I would have said hello. a. had seen b. see c. saw d. would see. 5I…………..out if I hadn’t been so tired. a. will go b. went c. would have gone d. would go. 6If I ………..a camera, I would have taken some pictures. a. have b. had c. would have d. had had. 7You won’t pass the examination……………you study more. a. as long as b. unless c. if d. whether. 8If only I …………you wanted to invest money in business. a. had known b. knew c. have known d. know. 9If I were to leave my country , I ……………disappointed. a. probably be b. would have been c. will be d. would be. 10If he hadn’t wasted too much time, he…………….in his examination. a. would fail b. wouldn’t fail c. wouldn’t have failed. d. won’t fail. 11If I had taken that English course, I ………..much progress. a. had made b. would have made c. made d. would make. 12If I were in your place, I ……….a trip to England. a. will make b. had made c. made. d. would make. 13If I ………….. you , I’d save some of your lottery winning. a. be b. were c. am d. be not 14If the car ……….. larger, we would have bought it. a. had been b. have been c. has been d. been 15If I had enough money, I ……… abroad to improve my English. a. will go b. should go c. would go d. should have go to

Bài 1 thực hiện phép tính nhanh: a) 17 . 85 + 15 . 17 - 120 b) 23 . 17 - 23 . 14 c) 20 - [ 30 - (5 - 1)2 : 2] d) 80 - ( 4 . 52 - 3 . 22 ) e) 27 . 77 + 24 . 27 - 27 f) 174: {2 . [36 + ( 42 - 23 )]

Giúp mk nhanh vs Mk cần gấp câu c Câu a) là 2x-4/x-3

V/ Choose the best answers: 1. Did you (go / going / goes / went) to Nam’s birthday? –Yes, I (don’t / do / did / didn’t ). 2. How ( many / much / often /old ) water does Tom drink everyday? He (drank / drink / drinks / drunk) four bottles of water. 3. What are you doing? I’m (reading / watering / surfing / listening) the Internet. 4. What (is / was / will / were ) the weather be like tomorrow? It’ll (be/ to be / is / am) sunny and hot. 5. (What / Why / Where /Who ) do you learning English? Beacause I want to (watch / watches / watching / watched) English cartoons on TV. 6. We went to Phu Quoc Island (on / in / by / from) ship. 7. What are you reading? I’m reading (an / a / two /three) amazing story. 8. Who is the main (character/ characters / chiracter / chasacter)? 9. What’s the matter with (her/ herself / him / himself )? (They / We / I / He) has a sore throat 10. What does she often (does / did /doing /do) in her free time? She goes (jogging / football / skipping / badminton). 11.(What/ Where) are you doing, Linda? I’m (surfing/ doing) the Internet. 12.How (often/ old) does Nam study with his partner? He often (studys/ studies) with his partner everyday. 13.Where (do/ did) you go last summer holiday? I went (in/ to) Phu Quoc Island. 14. How did you (get/ got) there? I went (from/ by) ship. 15. Did Mary go to (Nam/ Nam’s) birthday party? Yes, she ( did/ didn’t). 16.What did she (have/ do) at Nam’s birthday party? She (have / had) nice food and drink. 17.Where (was/ were) you yesterday? I was (at/ in) the seaside. 18.They took (part/ parts) in the festival on Sunday. 19.We (enjoyed/ enjoys) the food and drink at the party yesterday. 20.I want to (invite/ invited) Tony and Phong to my birthday party.