Từ trang 1 -> trang 9 có: (9 - 1) : 1 + 1 = 9 (chữ số)

Từ trang 10 -> trang 99 có: (99 - 10 + 1) x 2 = 180 (chữ số)

Số các chữ số còn lại là: 342 - 9 - 180 = 153 (chữ số)

Số trang có 3 chữ số là: 153 : 3 = 51 (trang)

Vậy quyển sách có tất cả: 99 + 51 = 150 (trang).

x * 4,5 + 2,4 * x = 68,43 - 9,78

=> x * (4,5 + 2,4) = 58,65

=> x * 6,9 = 58,65

=> x = 58,65 : 6,9

=> x = 8,5

Dễ TK MK đi mk trả lời cho

68. Chung said/ sister/ go/ there/ in ten minutes.

=> Chung said that her sister would come there in ten minutes.

69. My village/ about 100 km/ the south / ho chi minh city

=> My village is about 100km to the South of Ho Chi Minh city.

70. She/ took/ many photos/ show the trip/ parents

=> She took many photos to show the trip to her parents.

76.Her house /far/ her office

=> Her house is far from her office.

78. She/ usually/sell/food/the students/ lunch time

=> She usually sells food for the students at lunchtime.

79.the journey/the village/ very interesting

=> The journey to the village was very interesting.

80. They / went/ boat/ the river/ the afternoon

=> The went boating on the river in the afternoon.

bn ơi,cho mk hỏi,8% giá vồn hay giá bán zậy

11. In VN/either /French /English /language /instruction. It means /the children /learn /French /English.

=> In VietNam, either French or English is in language intruction. It means that the children can learn both French and English.

12. Malaysia /divide /two regions /know /West Malaysia /East Malaysia.

=> Malaysia is divided into two regions known as West Malaysia and East Malaysia.

13. A dollar /consist/100 cents.

=> A dollar consists of 100 cents.

14. They /go/see /a film/Sao Mai movie theater/call / War in VN/last year.

=> They went to see a film at Sao Mai movie theater called War in VN last year.

15. I hope /you /have /good stay /there.

=> I hope you are having a good stay there.

16. Last week /she /really /impress/the beauty/HN/and / the friendliness /people.

=> Last week, she was really impressed by the beauty of HaNoi and the friendliness of the people.

17. My way/home village,/I/always /pass/ the bamboo forest.

=> On my way to the home village, I always pass the bamboo forest.

18. Life /the country /be /quite/different /that /the city

=> Life in the country is quite different from that in the city.

20. American English /British English /be not /quite /the same. They/be /different /some ways.

=> American English and British English are not quite the same. They are different in some ways.

21. We/know /him/since /we/grade six.

=> We have known him since we were at grade six.

24. This /the /good/boy/I/ever/meet.

=> This the best boy I have ever met.

26. I/know /her/since /I/move/this neighborhood.

=> I have known her since I moved to this neighborhood.

27. She /first /meet/Lan/in 2005.

=> She first met Lan in 2005.

28. I/send/a postcard /by Lan /yesterday.

=> I was sent a postcard by Lan yesterday.

29. A bridge /call/Dragon Bridge /going /build /next year.

=> A bridge called Dragon Bridge is going to be built next year.

1. the heavy rain prevented everybody from going out

=> Had it not been for the heavy rain, everybody could have gone out.

2. mrs. taylor regretted buying the second-hand washing machine

=> Mrs.taylor wished she hadn't bought the second hand washing machine.

3. they belive that the wanted man was living in london

=> The wanted man is believed to be living in London.

4. what is the weight of your suicase ?

=> How heavy is your suitcase?

5. in spite of his age , mr. benson runs 8 miles before breakfast everyday

=> Though Mr.Benson is old, he runs 8 miles before breakfast everyday.

1. if i met the author one day , i would ask him to sign my copy of his new book

WERE

=> Were I to meet the author one day, I would ask him to sign my copy of his new book.

2. " it was your fault to break my vase yesterday " said jane to her brother

ACCUSED

=> Jane accused her brother of breaking her vase the day before.

3. she is such a beautiful girl that everybody admires her

SO

=> She is so beautiful that everybody admires her.

4. are you and your husband the same age ?

OLD

=> Are you as old as your husband?

5. hoang didn't come to class today . nhan didn't, either

NOR

=> Neither Hoang nor Nhan came to class today.

2/Most accidents can be avoided if people pay more.......attention.....(attend)

720; kick lun đi mà