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24 tháng 9 2023

Tổng số học sinh không đổi Ta có:

Đầu năm số học sinh thích toán bằng: 1 : (1+4)= \(\dfrac{1}{5}\)(tổng số học sinh)

Cuối kỳ I số học sinh thích toán bằng: 2 : (2+5) = \(\dfrac{2}{7}\)(tổng số học sinh)

3 học sinh ứng với: \(\dfrac{2}{7}\) - \(\dfrac{1}{5}\) = \(\dfrac{3}{35}\) (tổng số học sinh)

Lớp 5C có số học sinh là: 3 : \(\dfrac{3}{35}\) = 35 (học sinh)

Đáp số:.....

22 tháng 7 2021

1. Nowadays, many children are used to connecting the Internet everyday.

2. I couldn't keep in touch with him before because I had lost his phone number.

3. They have been working for this company for thirty years and they will retire next year.

4. We were delighted to receive your letter yesterday.

5. When we saw them, they were trying to find a new house near their workplace.

22 tháng 7 2021

1 off

2 down

3 to

4 down

5 from

6 with

7 up

8 off

9 forward

10 down

22 tháng 7 2021

off

down

with

down

from

to

up

off

forward

down

22 tháng 7 2021

1 turned it down

2 worn out

3 call off

4 turn up 

5 came across

6 carried out

7 broken into

8 gave up

9 took - off

10 set up

22 tháng 7 2021

Refer =))

 

1.turn it down

2.worn out 

3.call off : trì hoãn

4.turn up : xuất hiện/được tìm thấy

5.come across

6.carry out

7.broken into

8.give up 

9.take her clothes off 

10.set up 

14 tháng 11 2021

1. When did he last write to you?

2. How long is it since he talked to you?

3. How long is it since you telephoned him?

4. How long is it since you learned to drive?

5. How long ago did you learn spanish?

Bạn cần hỗ trợ câu nào ạ?

tất cả ạ, giúp mik vs mai mik nộp òi

vui

22 tháng 7 2021

1 is he leaving - will be playing

2 are training

3 were you doing - called

4 had finished - went

5 don't really expect - smells

6 do you feel - think

8 have you been doing

9 got - had begun

22 tháng 7 2021

has won

have you sat

have sat

have been sitting

have been playing

have played

has raised 

has been lecturing

has never missed

has been sleeping

has slept

22 tháng 7 2021

1 retirement

2 unemployment

3 wooden

4 observation

5 researchers

6 psychologist

7 building

8 importance

9 introductory

10 technologically

22 tháng 7 2021

1. When did you have this motorbike ?
2. I have visited HCM city 3 times before.
3. While Jim was traveling in Paris, he met his old classmate there.
4. I have never flown in a plane before yesterday.
5. I have visited my grandparents for 2 weeks.
6. I had worked for my father for 3 years before I got a job with a French company.

22 tháng 7 2021

1.When did you have this motorbike?

2.I have visited HCM cite 3 times before.

3.While Jim was travelling in Paris, he met his old classmate there.

4.I have never flown in a plane before yesterday.

5.I have visited my grandparents for 2 weeks.

6.I had wored my grandparents for 3 years before I got a job with a Prench company.