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9 tháng 9 2022

ngữ pháp tiếng anh không chuẩn lắm bạn tham khảo cách giải bằng tiếng việt nha.

Nội dung của đề là cứ mỗi ngày một con gà mái đẻ 1 quả trứng, mỗi sáng thì ăn 2 quả. Ngày 1/5 thì có 20 quả. Hỏi bao nhiêu ngày thì hết trứng để ăn?

Ngày 1/5 đã ăn rồi vẫn còn 20 quả.

Bắt đầu từ ngày 2/5 mỗi sáng ăn 2 quả nhưng gà lại đẻ một quả.

Do đó ta xem số trứng đã tích trữ được vào ngày 1/5 dùng mỗi ngày một quả.

Dễ thấy với số trứng đã tích trữ được vào ngày 1/5 và cộng thêm số trứng mỗi ngày gà đẻ thì sau 20 ngày sẽ không đủ 2 quả trứng cho bữa sáng.

Vậy vào ngày 21/5 là ngày cuối cùng bữa sáng ăn đủ 2 quả trứng

45 lượt xem Bạn đã được cộng thêm +1 điểm online, tổng điểm: 32 REVIEW GRADE 8- UNIT 9-10-11 I. MULTIPLE CHOICE 1. We don’t know the name of the injured person. A. burned B. sterile C. wounded D. unconscious 2. Don’t let the victim become chilled. A. looked tired B. fall asleep C. appeared hungry D. get cold 3. They filled the bucket with water from the river. A. container B. glass C. pot D. bowl 4. The boy fell his bike and hit his head on the...
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45 lượt xem Bạn đã được cộng thêm +1 điểm online, tổng điểm: 32

REVIEW GRADE 8- UNIT 9-10-11
I. MULTIPLE CHOICE
1. We don’t know the name of the injured person.
A. burned B. sterile C. wounded D. unconscious
2. Don’t let the victim become chilled.
A. looked tired B. fall asleep C. appeared hungry D. get cold
3. They filled the bucket with water from the river.
A. container B. glass C. pot D. bowl
4. The boy fell his bike and hit his head on the road.
A. of B. for C. off D. out
5. Cool it immediately so as to minimize tissue damage
A. reduce B. deepen C. widen D. enlarge
6. People use first aid in order to the victim's pain and anxiety.
A. cure B. treat C. increase D. ease
7. We can stop the bleeding by using a towel to cover the wound, then put on it.
A. pressure B. medicine C. bandage D. cloth
6. Don't give the victim any food or drink if he or she gets .
A. happy B. sad C. shock D. fainting
7. Cover the burned area with a thick dressing.
A. polluted B. sterile C. dry D. affected
8. Farmers collect household and garden waste to make .
A. compost B. floor coverings C. pipes D. glassware
9. My sister sold all the empty cans she collected funds for the orphans.
A. to take B. to rise C. to raise D. to use
10. You will get back your when you bring the cans back for recycling.
A. deposit B. account C. envelop D. payment
11. means not buying products which are over packaged.
A. Reuse B. Recycle C. Reduce D. Refund
12. is a long thin piece of cloth or paper used for tying round and protecting a wound.
A. Water packs B. Bandage C. Blanket D. Handkerchief
13. She has already her cup five or six times.
A. refilled B. reduced C. reviewed D. recycled
14. The cup of coffee kept her all night.
A. awake B. alone C. asleep D. alive
15. I think we should use such as banana leaves, lotus leaves to wrap things.
A. tree products B. tree leaves C. fruit skins D. trees
16. Plastic bags are difficult to be destroyed, so the amount of garbage will .
A. go down B. reduce C. increase D. go away
17. We felt very happy Tet.
A. since B. in C. on D. at
18. The farmers look for other work get more money for their family.
A. in order to B. so as C. in order that D. so that
19. You should put the affected part under a running cold tap when you have .
A. a shock B. a faint C. a burn D. a pain

20. You should elevate the patient’s feet above the level of the heart.
A. raise B. rise C. press D. reduce
21. A is used for carrying somebody who is sick or injured and who can’t walk.
A. bandage B. armchair C. wheelchair D. crutch
22. Typhoons, floods or droughts can easily a harvest.
A. destroy B. finish C. provide D. defeat
23. My father has worked for that company over ten years.
A. for B. since C. at D. in
24. One of the solutions to reduce the shopping garbage is using .
A. plastic bags B. cloth bags C. wood bags D. liquid bags
25. can take a patient to the hospital quickly.
A. A crutch B. An ambulance C. A wheelchair D. A scale
26. He tried to explain what he did persuade his customers.
A. in order that B. in out of C. so as to D. so as not as
27. Contact an organization like Friend of the Earth information.
A. for B. to C. with D. about
28. He picked the phone as soon as it rang.
A. on B. up C. in D. off
29. How about going to Vincom Center for dinner, Alex?
A. That’s sound interesting. B. That sounds interesting.
C. Not at all. D. Please go ahead.
30. is a type of bed used for carrying the sick or injured people.
A. Stretcher B. Ambulance C. Crutch D. Bandage
31. My sister-in-law fainted but the nurse helped her soon.
A. ease B. revive C. minimize D. cool

1
16 tháng 3 2020

Sao toán lại có Tiếng Anh :))

5 tháng 4 2016

đầu bài là gì vạy ạ

5 tháng 4 2016

Viết lại câu 

Viết lại câu không thay đổi nghĩa:1)The room is so dirty that it took us one hour to clean it. => It is.....~~~2)The man is so fool that no one took any notice of him. => He is.....~~~3)The flim is so long that they can't broadcast it on one night. =>....~~~4)The books are so interesting that we have read them many times. =>.....~~~5)The news was so bad the she burst into tears on hearing it. =>.....6)The food was so hot that it turned my tongue.=>It was.....~~~7)There is so much rain...
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  • Viết lại câu không thay đổi nghĩa:
  • 1)The room is so dirty that it took us one hour to clean it. => It is.....~~~
  • 2)The man is so fool that no one took any notice of him. => He is.....~~~
  • 3)The flim is so long that they can't broadcast it on one night. =>....~~~
  • 4)The books are so interesting that we have read them many times. =>.....~~~
  • 5)The news was so bad the she burst into tears on hearing it. =>.....
  • 6)The food was so hot that it turned my tongue.=>It was.....~~~
  • 7)There is so much rain that we can't go out.=>There is such....~~~
  • 8)The boy is so fat that every calls him Stuffy.=>He is....~~~
  • 9)The milk is so excellent that all the children want some more.=>It is.....~~~
  • 10)The weather was so warm that they had a walk in the garden.=>It was....
  • 11)There were so many people in the hall that we couldn't see him.=> There were such....
  • 12)The match was si exciting that all the fans shouted loudly.=> It was......
  • 13)They drank so much coffee that they couldn't sleep all night.=>They drunk such...
  • 14)Alice had so many exercises to do that she couldn't go out.=>Alice had such.....
  • 15)The woman was so poor that she needed everyone's help.=>She was.........
0
11 tháng 1 2017

ko có đề bài bn oybucminh

11 tháng 1 2017

Đề bài là chuyển thành câu bị động

6 tháng 3 2017

Ta có: \(pq+q=13+q^2\Leftrightarrow q\left(p+1\right)=13+q^2\)

\(q^2⋮q\Leftrightarrow13⋮q\Leftrightarrow\left[{}\begin{matrix}q=1\\q=13\end{matrix}\right.\)

Nếu q =1 thì:\(p+1=14\Leftrightarrow p=13\)

\(\Rightarrow pq=13\left(cm^2\right)\)(1)

Nếu q=13 thì:\(13p+13=182\Leftrightarrow p=13\)

\(\Rightarrow pq=169\left(cm^2\right)\)(2)

Từ (1)(2) ta có: \(max\left(pq\right)=169\left(cm^2\right)\)

Bạn xem hộ mình sai ở đâu k

6 tháng 3 2017

câu 2 thì dựa vào đây nhưng chưa đầy đủ đâu bạn làm nốt nhé https://hoc24.vn/hoi-dap/question/197024.html?pos=675443

2 tháng 8 2016

1. Can Peter repair the bike ? ( skilful )
~> No , he ________________________isn't skilful enough to repair it.
2. Will you take a rest after lunch ? ( tired )
~> Yes , I _________________am tired enough to take a rest after lunch.
3. Can I work with these men ? ( old )
~> No , you _____________________aren't old enough to work with him
4 . Can she join our club ? ( old )
~> Yes, she ______________is old enough to join our club.
5. Can they hang the picture on the wall ? ( tall )
~> No, they ___________________ aren't tall enough to hang it on the wall.
6. Did you wear this coat last winter ? ( cold )
~> No , it was ________________ cold enough to wear this coat.
7. Can you listen to the music on the radio ? ( clear )
~> No, it ___________________ isn't clear enough to listen to the music on the radio
8. Will you buy the new CD of the band ? ( good )
~> Yes, the songs are __________________ good enough to by the new CD of the band.
9. Can we swim early in the morning these days ? ( warm ) 
~> Yes, the water is______________________ warm enogh to swim in the morning these days.
10. Why don't we sit ouside? ( cool )
~> Yes, it's __________________ cool enough to sit ouside.

2 tháng 8 2016

đây là học toán chứ ko phải tiếng anh

9 tháng 4 2015

hfgesJdfahIJiufgidjrhibjfzytr

 

9 tháng 4 2015

mày hỏi tiếng anh chó trả lời !!!!!!!!!!!

30 tháng 11 2017

1 . Peter isn't old enough to see the horror film

2 . My grandmother used to live on the farm when she was young

3 . She has a long black hair