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12 tháng 8 2018

bài 1:\(x+x\cdot9=90\)

         \(x\cdot10=90\)

         \(x=90:10\)

          \(x=9\)

bài 2:\(x\cdot4=x\cdot25=1000\)

         \(x\cdot100=1000\)

         \(x=1000:100\)  

         \(x=10\)

13 tháng 8 2018

x+x.9=90 =>x=9

x.4+x.25=1000 =>x=1000/29

Reading9   Read the text.Interviewer Dr Watson! Just how important is sport for teenagers?Dr Watson 1_________________ It's no good just spending two or three hours a day playing video games. You can't be fit and healthy if you hardly ever do exercise. Three or four hours a week is OK. Different sports exercise different parts of the body. For example, swimming is excellent for your arms and shoulders. 2_________________ Then, there are team sports, where you need to use special skills to...
Đọc tiếp

Reading

9   Read the text.

Interviewer Dr Watson! Just how important is sport for teenagers?

Dr Watson 1_________________ It's no good just spending two or three hours a day playing video games. You can't be fit and healthy if you hardly ever do exercise. Three or four hours a week is OK. Different sports exercise different parts of the body. For example, swimming is excellent for your arms and shoulders. 2_________________ Then, there are team sports, where you need to use special skills to play well. Team sports can also help you work more easily with other people – and this is important when you want a job.

Interviewer 3_________________

Dr Watson These are not a very good idea, because they can be quite dangerous. You need special protection like a helmet for your head, pads for your knees and elbows. It's always a good idea to work with a trainer, who can help when you have problems.

Interviewer 4_________________

Dr Watson Things like board games or bowling can also be very good for you. They don't give you much physical exercise, of course, but they are important mental exercise. And they are often good fun too. 5_________________ Oh, and finally, I would also recommend listening to or playing music. It's important to work with both mind and body, and music can do that very well!

Match the sentences A–E with the gaps 1–5 in the text.

A   Cycling, on the other hand, is good for your legs and knees.

B   What about other activities?

C  Well, all young people need physical exercise.

D  What about extreme sports?

E   You meet lots of different people and you enjoy life more.

 

5 bạn trả lời nhanh nhất mk sẽ tick nha!

2
8 tháng 10 2021

nhiều thế bạn

8 tháng 10 2021

mình xin lỗi! đây là TA lớp 6

12 tháng 8 2020

là sao bn mk ko hiểu đề 

12 tháng 8 2020

LÀ SAO!?

23 tháng 2 2021

Hung goes jogging (chạy bộ) in the morning (vào bưổi sáng) 4 times (4 lần) a week (1 tuần).

He plays football (chơi đá banh) with his friends (với bạn bạn ấy) 3 times (3 lần) a week (1 tuần).

He visits (thăm) his grandparents (ông bà bạn ấy) once (1 lần) a week (1 tuần).

He surfs (lướt) the internet twice (2 lần) a week (1 tuần).

1 tháng 10 2021

1. Because he only sleeps at night.

2. You are too young to be smoking

3. An envelope

4. They scared to become hotdogs

5. Because it is not right

6. NOON

Chúc bạn một ngày học tập hiệu quả

1 tháng 10 2021

Cảm ơn,mik 8 tiếng trước rồi mà bạn vẫn trả lời ,cảm ơn nha

23 tháng 10 2021

cái này Tiếng Việt nha,mk ghi nhầm

từ chỉ đặc điểm của không khí,sóng,mặt nước,dòng sông,ong bướm,con đường là

Không khí trong lành

Sóng rì rào

Mặt nước tĩnh lặng

Dòng sông êm đềm

Con đường bằng phẳng

26 tháng 9 2021

bạn ơi đề này bạn ghi linh tinh thì ai làm đc hả bạn, đừng đăng bài viết linh tinh nữa đi đc ko :|

22 tháng 12 2021

báo cáo thôi,lại có việc để làm rồi

Exercise 2: Choose the correct answer A, B, C or D:1. Ha Noi is a big ............. in the north.A. street B. city C. town D. lane 2. His.......... is 187B, Giang Vo Street.A. class B. road        C. town D. address 3. His flat is far .... the city centre.A. from B. to C. with D. of 4. They usually ......... early and do morning exercise.A. gets on B. get up C. get on D. gets up 5. What ......... you do after school? – I usually do my homework.A. do B. are C. does D. x 6. Mary often...
Đọc tiếp
Exercise 2: Choose the correct answer A, B, C or D:
1. Ha Noi is a big ............. in the north.
A. street B. city C. town D. lane

 

2. His.......... is 187B, Giang Vo Street.
A. class B. road        C. town D. address

 

3. His flat is far .... the city centre.
A. from B. to C. with D. of

 

4. They usually ......... early and do morning exercise.
A. gets on B. get up C. get on D. gets up

 

5. What ......... you do after school? – I usually do my homework.
A. do B. are C. does D. x

 

6. Mary often ......... TV after dinner with her parents.
A. watch B. to watch C. watches D. watchs

 

7. What does your mother ........ in the evening? – She ......... me with my homework.
A. do – help B. do – helps C. does – helps D. does – help

 

8. I sometimes go to the sports centre with my friends ......... the afternoon.
A. on B. at C. with D. in

 

9. I went ......... a trip with my family.
A. in B. on C. at D. of

 

10.......... did you go on holiday?
A. What B. Where C. Which D. How many

 

11. Nam and Mai want to ……… the caves.
A. explore B. explores C. to explore D. exploring

 

12. Do you practise …….. English everyday? 
A. speak B. speaking C. speaks D. to speak
2
25 tháng 12 2021

Exercise 2: Choose the correct answer A, B, C or D:1. Ha Noi is a big ............. in the north.A. street B. city C. town D. lane

2. His.......... is 187B, Giang Vo Street.A. class B. road        C. town D. address

3. His flat is far .... the city centre.A. from B. to C. with D. of

4. They usually ......... early and do morning exercise.A. gets on B. get up C. get on D. gets up

5. What ......... you do after school? – I usually do my homework.A. do B. are C. does D. x

6. Mary often ......... TV after dinner with her parents.A. watch B. to watch C. watches D. watchs

7. What does your mother ........ in the evening? – She ......... me with my homework.A. do – help B. do – helps C. does – helps D. does – help

8. I sometimes go to the sports centre with my friends ......... the afternoon.A. on B. at C. with D. in

9. I went ......... a trip with my family.A. in B. on C. at D. of

10.......... did you go on holiday?A. What B. Where C. Which D. How many

11. Nam and Mai want to ……… the caves.A. explore B. explores C. to explore D. exploring

12. Do you practise …….. English everyday? A. speak B. speaking C. speaks D. to speak

25 tháng 12 2021

Ha noi is a big city in the north 

vi ha noi la thanh pho khong phai la duong