Gọi số tiền ban đầu bà An gửi là x (triệu đồng) (x > 0)

=> Số tiền lãi bà An nhận được mỗi tháng là \(\frac{0,8x}{100}\) hay \(\frac{x}{125}\) (triệu đồng)

Theo bài ra ta có pt:

\(x+\frac{x}{125}=50,4\)

\(\Leftrightarrow\frac{125x}{125}+\frac{x}{125}=\frac{6300}{125}\)

\(\Leftrightarrow\frac{125x+x}{125}=\frac{6300}{125}\)

=> 126x = 6300

<=> x = 50 (Thỏa mãn đk)

Vậy số tiền ban đầu bà An gửi là 50 triệu đồng

Gọi số sách lấy ra ở ngăn thứ nhất là x (quyển) (x ∈ N^*)

=> Số sách lấy ra ở ngăn 2 là \(\frac{x}{3}\) (quyển)

Số sách còn lại ở ngăn 1 là 120-x (quyển)

Số sách còn lại ở ngăn 2 là 140 - \(\frac{x}{3}\) (quyển)

Theo bài ra ta có pt:

2(120-x) = 140 - \(\frac{x}{3}\)

<=> \(\frac{6\left(120-x\right)}{3}=\frac{420}{3}-\frac{x}{3}\)

<=> \(\frac{720-6x}{3}=\frac{420-x}{3}\)

=> 720 - 6x = 420 - x

<=> -6x + x = 420 -720

<=> -5x = -300

<=> x = 60 (Thỏa mãn đk)

Vậy số sách lấy ra từ ngăn thứ nhất là 60 quyển; số sách lấy ra từ ngăn thứ 2 là 20 quyển

1 Mary said: " Are you hungry Quynh"

=> Mary asked Quynh if she was hungry

2 Peter sais when will you get back from New YorkJohn?

=> Peter asked John when he would get back from New York

3 Peter said how long does it take to get to New York John?

=> Peter asked John how long it took to get to New York

4 Tom said can you swim lam?

=> Tom asked Lam if she/he could swim

5The hunter said do you hear the roar of a lion Joe

=> The hunter asked Joe if she heared the roar of a lion

6 Mary said is your new baby a boy or a girl Mrs Jane

=> Mary asked Mrs Jane whether her new baby a boy or a girl

7 Favis said may I borrow your car Emily

=> Favis asked Emily if he might borrow her car

Mk tưởng câu 1 phải là "It has been two years since she left university" chứ nhỉ

Part 1 : Rearrange the words to make complete sentences.

1. a / who / studies / a / scientist / is / chemistry / chemist //

=> A chemist is a scientist who studies chemistry

2. the / said / differences/ that / a / communication / happen / teacher / breakdown / might/ due/ to / cultural//

=>The teacher said that a communication breakdown might happen due to cultural differences

Part 2 : Use the provided words or phrases to write complete sentences.

3. interviewer / asked / if / he / go / walk / every day.//

=>The interviewer asked if he went for a walk everyday

Part 3: Rewrite the sentences, beginning with a word or a phrase given.

4. " I didn't say anything at the meating last week." John said.

=> John said that he hadn't said anything at the meeting the previous week

5. His parents are unhappy because of his laziness

=> His laziness makes his parents unhappy

6." What will happen if aliens occupy Earth?". Mai said

=> Mai asked what would happen if aliens occupy Earth

7. Volunteers have given out food and blankets to homless people.

=> Food and blankets have been given out to homeless people by volunteers

8. In spite of his broken leg, he managed to get out of the car.

=> Although his leg was broken, he managed to get out of the car

Chúc bạn thi tốt

He/she asked me if I could open the window

10. We said to them, "Your houses are very nice"

-> We said to them their houses were very nice

-> We exclaimed that their houses were very nice

11. She said to them, "He's lived here for 4 years"

-> She said to them he had lived there for 4 years

12. Tom said, "I'm going away for a few days and will phone you when I get back"

-> Tom said that he was going away for a few days and would phone me when he got back

13. Mary said to John, "I cannot go to the movie with you tomorrow"

-> Mary said to John she couldn't go to the movie with him the following day

14. William said, "I'm very grateful to you for your helping me with the Vietnamese lesson"

-> William said that he was very grateful to me for my helping him with the Vietnamese lesson

15. "I don't like this film" Betty said to Bill.

-> Betty said to Bill she didn't like that film

16. "Don't swim out too far, boy" She asked.

-> She told the boy not to swim out too far

17. "Please don't smoke in my car" the drivere asked.

-> The driver asked me not to smoke in his car

18. "Come to see me when you have free time." My uncle asked.

-> My uncle asked me to come to see him when I had free time

19. "The windows are broken," said Nga.

-> Nga said that the windows were broken

20. "You must pay me now," said Lan.

-> Lan said that I must pay her then

21. "I will go to HCM City tomorrow." Said Mr. Quang.

-> Mr. Quang said that he would go to HCM City the following day

22. We are learning English now," said the students.

-> The students said that they were learning English then

23. “Are you a student?" Tim asked.

-> Tim asked me if I was a student

24. "Will you be to France in the future?" my uncle asked.

-> My uncle asked me if I would be to France in the future

25. "Do you like English music?" Ann asked.

-> Ann asked me if I liked English music

26. "Where do you live?" Ann asked.

-> Ann asked me where I lived

27. "Which grade are you in?" asked Tim.

-> Tim asked me which grade I was in

28. "What are you doing now? She asked me

-> She asked me what I was doing then

29. "What have you got in your luggage?" he asked

-> He asked me what I had got in my luggage

30. "Are you a spy?" Nam asked

-> Nam asked me if I was a spy

31. "Do you have a notebook?" he asked

-> He asked me if I had a notebook

32. "Where are you going?" Hoa asked

-> Hoa asked where I was going

33. "Where have you come from?" Lan asked

-> Lan asked me where I had come from

34. "How long have you been in the country?" Ba asked

-> Ba asked how long I had been in the country