Đáp án + Giải thích các bước giải:
$a,264 + y = 231 + 178\\\quad264+y=409\\\quad\quad\quad\quad y=409-264\\\quad\quad\quad\quad y=145$
$b, 25 : y = 35: 7\\\quad25:y=5\\\quad\quad\quad y=25:5\\\quad\quad\quad y=5$
a, 264 + y = 231 + 178
264 + y = 409
y = 409 - 264
y = 145
Vậy y = 145
b, 25 : y = 35 : 7
25 : y = 5
y = 25 : 5
y = 5
Vậy y = 5
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Exercise 2. Rewrite the following sentences in reported speech with Gerund 1. “Why don’t we organize an English competition for our student?” said Ms Lien. Ms Lien suggested ………………………………………………………....................................................... 2. “I’m sorry I’m late,’ said Mr Thanh. Mr Thanh apologized ...………………………………………………............................................................ 3. “Me? No, I didn’t take Sue’s calculator,” Said Bob. Bob denied ………………………………………………………................................................................... 4. “You took my pencil,” said David to Henry. David accused ……………………………………………………….............................................................. 5. “I must see the manager,” he cried. He insisted ……………………………………………………….................................................................... 6. “ You won the scholarship. Congratulation!” Mary told me. Mary congratulated .…………………………………………………............................................................. 7. “It was kind of you to help me with my homework,” Lan said to Hoa. Lan thanked ……………………………………………………….................................................................. 8. “Turn off the computer. You are not allowed to play game now,” Dick’s mother said to him. Dick’s mother prevented ...……………………………………….................................................................. 9. “I’m sorry that I broke the glass,” said Peter. Peter apologized ………………………………………………………......................................................... 10. “Let’s invite Mr. Brown to the party next weekend,” he said. He suggested ………………………………………………………................................................................ 11. “You stole the jewels,” the inspector said to him. The inspector accused .......………………………………………………....................................................... 12. “I only borrowed your car for some hours,” the man said. The man admitted ………………………………………………………........................................................ 13. “I’m sorry I damaged your tape recorder, Mike,” said Bob. Bob apologized ………………………………………………………............................................................ 15. “It’s nice of you to invite me to lunch,” Bob said to John. Bob thanked ………………………………………………………................................................................. 16. Carol said, “What about going to the cinema this weekend, Max ?” Carol suggested ………………………………………………………............................................................ 17. “I’m sorry I forgot your birthday,” Dave said Julia. Dave apologized ………………………………………………………........................................................... 18. “Why didn’t you tell me the truth?” he said to me. He accused ………………………………………………………...................................................................
Tìm tất cả các hàm số `f:NN^(***)\rightarrow NN^(***)` thỏa mãn điều kiện `f(m+n)^k⋮f(m)+f(n)` `(k,m,n\in NN^(***))`
Exercise 1. Rewrite the following sentences in reported speech with infinitives. 39. “Don’t forget to send your uncle a birthday card tomorrow,” Mary said to her son. Mary reminded ...…………………………………………………………...................................................... 40. “Please come to our wedding,” John said to his boss. John invited …………………………………………….................................................................................. 41. “Don’t run around the edge of the swimming pool or you’ll fall in,” Susan said to her children. Susan warned ………………………………………………………............................................................... 42. “I won’t go to bed,” Ron said. Ron refused ……………………………………………….............................................................................. 43. “You should talk to your advisor,” Bill said to Linda. Bill advised ……………...…………………………....................................................................................... 44. “Take that chewing gum out of your mouth immediately!” the teacher said to Tom. The teacher ordered ……………………………………………………………….......................................... 45. “ I will bring the sandwiches to the party,” said Helen. Helen offered ................................................................................................................................................... 52. “Come to the cinema with me tonight,” he said to her. He invited ……...……………………………………….................................................................................. 53. The teacher said to us , “Do all your homework before you go to class” The teacher told ..……………………………………….................................................................................. 54. Mary said to Tom, “Send me a postcard when you come to Paris, please” Mary asked ....................................................................................................................................................... 55. He said to me, “Don’t believe everything you hear” He advised ..……………...…………………………....................................................................................... 56. James said to her boyfriend, “Come with me tonight. I’m feeling very lonely” James begged .…………...…………………………....................................................................................... 57. “Follow this car,” the detective said to the taxi-driver. The detective ordered ....................................................................................................................................... 58. “Go on, send your short story to magazine,” Adam said to Alice Adam encouraged ............................................................................................................................................ 59. The teacher said to Jim, “Would you give your book to Mary, please?” The teacher asked ............................................................................................................................................. 60. “Ok. I will not change the date of the meeting,” Mary said Mary promised .................................................................................................................................................
Dựa vào bài thơ Đêm trăng tròn của Anh Thơ, em hãy viết một bài văn miêu tả ( Miêu tả trăng trong một đêm mùa xuân.) LƯU Ý: PHẢI DỰA VÀO BÀI THƠ VÀ VIẾT CHI TIẾT Mn ơi, giúp mình với ạ, mình sẽ vote cho mn🙏
24. “If I were you, I would join the voluntary team tomorrow, Tom,” said Eve. Eve advised ...................................................................................................................................................... 25. “Flora, can you remember to buy some bread?” said Raymond. Raymond reminded ..........................................................................................……………………………… 26. “ I really think you should see a doctor, Lucia, ” said Thomas. Thomas advised ..........................................................................................…………………………………. 27. “No, I’m sorry, I won’t work on Saturday,” said Victoria Victoria refused ..........................................................................................………………………………..… 28. “ If you like, I’ll help you do the decorating, Carol,” said Charles Charles offered ............................................................................................……………………………….… 29. “Carol, speaking English,” he said He told ................................................................................................………………………………..........… 30. “Fill in the form, sir” the receptionist said to the guest. The receptionist asked .....................................................................................………………………………. 31. “Mind your own business,” Ethel told me. Ethel told ................................................................................................……………………………….......... 32. “Don’t repair the computer yourself,” she said to him. She warned ................................................................................................……………………………….….. 33. “Don’t give yourself up” he told his girlfriend. He advised ................................................................................................………………………………..….. 34. “Don’t go out without me,” Harry told Sally. Harry begged ................................................................................................………………………………… 35. “Don’t forget to post the letter for me when you go out,” my wife said to me. My wife reminded ................................……………………………………………………………………… 36. “Could you possibly speak more slowly, please?” the student said to the teacher. The student asked ………………………………………………………………………................................. 37. “Guard, take him to the prison,” said the king. The king ordered ...………………………………………………………....................................................... 38. “Can you trans late this sentence into English for me?” Maria said to Mark. Maria asked ...………………………………………………………………...................................................
Cho mình hỏi câu số 4 ạ, mong được mn giải đầy đủ và có giải thích ạ, cảm ơn mn nhiều ạ
Một gen T có nhiều hơn X là 150nu . Trong gen có %G + %1 loại gen bổ sung với nó = 40% tổng số nu của gen a. Tính số nu mỗi loại b. Nếu mạch 1 có 100 A và 210 G . Tính nu mỗi loại trên từng mạch đơn
Exercise 1. Rewrite the following sentences in reported speech with infinitives. 1. “Remember to write to me soon,” she said to me. She reminded ................................................................................................................................................... 2. “You’d better spend more time learning to write,” I said to the boy. I advised ........................................................................................................................................................... 3. “Would you like to have dinner with us tonight?” Mike said to Linda. Mike invited ..................................................................................................................................................... 4. “Please, please turn off the T.V, John,” said Tom. Tom begged ..................................................................................................................................................... 5. “Don’t lean your bicycles against my windows, boys,” said the shopkeeper. The shopkeeper warned ................................................................................................................................... 6. “Open the safe,” the robber said to the bank clerk. The robber ordered ........................................................................................................................................... 7. “Leave this space clean, David,” she said. She told ............................................................................................................................................................ 8. “Shall I open the window for you, Edna?” he said. He offered ........................................................................................................................................................ 9. “I’ll wait for you. I promise,” he said to me. He promised ..................................................................................................................................................... 10. “Would you like to come with me?” John said to Mary. John invited ...................................................................................................................................................... 11. “Don’t forget to take the holiday,” Mark said to me. Mark reminded me ........................................................................................................................................... 12. “You should take a holiday,” Jane said to David. Jane advised ..................................................................................................................................................... 13. “ You really must take a holiday, Linda,” Jim said. Jim told ............................................................................................................................................................. 14. “Don’t touch that switch, Peter,” I said. I warned ........................................................................................................................................................... 15. “Read this document before you sign it,” he said to her. He advised ........................................................................................................................................................ 16. “Will you help me, please?” she said to me. She asked ......................................................................................................................................................... 17. “Please do as I say,” he said to me. He begged .......................................... 18. “Don’t forget to prune the roses,” my aunt said to Alfred. My aunt reminded ................................... 19. “Would you like me to help you with the cooking, Tom?” Laura said. Laura offered ...................................... 20. “If you don’t pay the ransom, we’ll kill your son,” the kidnappers said to them. The kidnappers threatened .................... 21. “Would you like to go camping with us next weekend?” Andrew said to Cindy. Andrew invited ..................................... 22. “Don’t forget to join in the contest tomorrow morning, Robin,” Jessica said. Jessica reminded .................................. 23. “Would you like me to clean the room for you, Alvin?” she said. She offered ...............................................
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Cho 200 g dung dịch barihidroxit 18% tác dụng với 600g dung dịch cuso4 10% thì thu được kết quả a và b tính khối lượng của a và b
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