1. A machine P can print one lakh books in 8 hours, machine Q can print the same number ò books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. While mac...

4

MA

mai anh

4 tháng 6 2018

15 day

NT

Nguyễn Tiến Sang

29 tháng 4 2020

15 ngày

Học tốt nha

H

Hieu_1234

28 tháng 6 2017

In order to make a call between two cities, custumer have to pay $0.4/ minute if call is made between 6:00 am to 24:pm, and $0.25 if the call is made from 24:00 to 6:00 in the morning

According to a notice, if the call between two cities at 2:00 cost $16 then how much do they have to pay for the call of the same duration at 10:00 pm

(You have to write down the calculations and result, but don't have to write down any explanation)

2

NM

nguyen mai han

28 tháng 6 2017

bạn cũng ôn thi Trần Đại Nghĩa đúng ko

NM

nguyen mai han

28 tháng 6 2017

thực ra mik cũng ôn Trần Đại Nghĩa và làm bài này rồi

You're a biologist on a mission to keep the rare honeybee Apis Trifecta from going extinct. The last 40 bees of the species are in your terrarium. You've already constructed wire frames of the appropriate size and shape. Your frame is made by equalateral hexagons, and it's shape is like an equalateral triangle with 9 hex on each side of your frame.Now you need to turn them into working beehives by filling every hex with wax. There are 2 ways to fill a given hexes:1. Place a bee into the cell....

HA

»» Hüỳñh Äñh Phươñg ( ɻɛɑm ʙáo cáo....

15 tháng 8 2020

5

NK

Nguyễn Khắc Gia Huy

17 tháng 9 2020

bnfgvyjh,gbjo/ghi/luuj'[uyh9p'80uo;tg8.ukfv.ifyylfyuk;uiogftirtfgy7ilytfgy8prt8777tg79tg7l8fy6i,ltrfgrfgrfgyluji[thntonoyt\[67uk67

NK

Nguyễn Khắc Gia Huy

20 tháng 9 2020

tgjirpeuyhr9tyurtyihririut405894uy89t

HA

»» Hüỳñh Äñh Phươñg ( ɻɛɑm ʙáo cáo....

4 tháng 10 2020

Câu hỏi hay

There are 4n pebbles of weights 1, 2, 3, . . . , 4n. Each pebble is coloured in one of n colours and there are four pebbles of each colour. Show that we can arrange the pebbles into two piles so that the following two conditions are both satisfied:

• The total weights of both piles are the same.

• Each pile contains two pebbles of each colour.

1

N

nguyenthuyhue

16 tháng 10 2020

nghĩa là :

Có 4n viên sỏi có trọng lượng 1, 2, 3 ,. . . , 4n. Mỗi viên sỏi được tô một trong n màu và có bốn viên sỏi mỗi màu. Chứng tỏ rằng chúng ta có thể sắp xếp các viên sỏi thành hai đống sao cho thỏa mãn hai điều kiện sau:

• Tổng trọng lượng của cả hai cọc là như nhau.

• Mỗi đống chứa hai viên sỏi mỗi màu.

1) Read this passage carefully then answer the following questions. His name is Minh. He teaches English in a big school in town. The school is not near his house so he travels to work by motorbike. He often leaves his house at 6.30 in the morning and goes home at 11.30. He has lunch at twelve o'clock. In the afternoon, he doesn't go to school, he reads books, watches TV and plays sports. He likes his job very much.1) Is Mr Minh a...

NT

Nguyễn Thùy Linh

18 tháng 5 2018

2

TH

tran huyen trang

18 tháng 5 2018

1) Read this passage carefully then answer the following questions.

His name is Minh. He teaches English in a big school in town. The school is not near his house so he travels to work by motorbike. He often leaves his house at 6.30 in the morning and goes home at 11.30. He has lunch at twelve o'clock. In the afternoon, he doesn't go to school, he reads books, watches TV and plays sports. He s his job very much.

1) Is Mr Minh a farmer? . . . No, he isn't ..............................

2) How does he travel to work? ... He travels to work bay motorbike ..............

3) What time does he leave his house?... He leaves his house at 6.30 in the moring

4) What does he do in the afternoon?.. In the afternoon, he doesn't go to work , he reads books, watches TV, plays sports .

5) Does he his job very much? . . Yes , he does

TK MK NHA

K

KAl(SO4)2·12H2O

18 tháng 5 2018

1) Is Mr. Minh a farmer?

- No, Mr. Minh is an English teacher

2) How does he travel to work?

- He travels to work by motorbike

3) What time does he leave his house?

- He often leaves his house at 6.30 in the morning

4) What does he do in the afternoon?

- In the afternoon, he doesn't go to school, he reads books, watches TV and plays sports

5) Does he his job very much?

- He s his job very much.

1.all evening./ Many/ old people/ sit and watch TV/ just2.in the evening./ return/ They always/ at 9.30/ home3.Football is one of the most famous _________ in the world.4.'Animal Land' zoo is o_______ today.5.My mother has ________ long hair. ( the, a, an, O )6.a friend/ Clara/ for dinner./ sometimes/ goes out with7.than/ Nicky/ has/ her sister./ fewer holidays8.People like sleeping in thent when they go _______9.I' ve got a _____ of postcards.10.She buys me a hat, ............. a cap. ( no,...

ND

Nguyễn Đức Minh

25 tháng 12 2016

3

NN

Nguyễn Ngọc Linh

25 tháng 12 2016

1 many old people just sit and watch tv all evening

2 they always return home at 9:00 at the evening

3 sport

4 open

5 O

6 clara sometimes goes out with a friend for dinner

7 nicky has fewer holiday than her sister

8 camping

9 lot

10 no

11 on

12 they will have to leave early in the morning to catch the train

13 her parent are going to the countryside for sightseeing

14 to

15 minh ko hieu cau nay

16 fast

17 A

18 she thanks me for inviting to her party

19 can i help you with your bag, mrs jones

20 left

CG

Cô gái bí ẩn

29 tháng 12 2016

1. Many old people just sit and watch TV all evening.

2.They always return home at 9.30 in the evening.

3.sport

4. open

5. 0

6.Clara sometimes goes out with a friend for dinner .

7.Nicky has fewer holidays than her sister.

8. camping

9.lot

10. no

11.on

12. They 'll have to leave early in the morning to catch the train.

13.Her parents are going to the countryside for sightseeing.

14.into

15.table

16.fast

17. A

18. She thanks me for inviting her to the party.

19. Can I help you with your bag,Mrs Jones?

20. left

cung cấp giáo viên nước ngoài at cung cấp giáo viên nước ngoàiCUNG CẤP GIÁO VIÊN NƯỚC NGOÀI CHIA SẺ ĐỀ CƯƠNG ÔN TẬP MÔN TIẾNG ANH LỚP 6 (PHẦN 2)II.EXERCISES :A / Multiple choice:01. Miss Lien is waiting (on/ for / at) the bus.02. How many school girls (is/ am/ are) there in your class?03. (How, What, Which) many books are there? .There are five books.04. I am (play, playing, to play) soccer. 05. we usually go to school (on, at,by) bike. 06. Are you...

MS

Miyano Shiho

31 tháng 7 2018

cung cấp giáo viên nước ngoài at cung cấp giáo viên nước ngoài

CUNG CẤP GIÁO VIÊN NƯỚC NGOÀI CHIA SẺ ĐỀ CƯƠNG ÔN TẬP MÔN TIẾNG ANH LỚP 6
(PHẦN 2)

II.EXERCISES :
A / Multiple choice:
01. Miss Lien is waiting (on/ for / at) the bus.
02. How many school girls (is/ am/ are) there in your class?
03. (How, What, Which) many books are there? .There are five books.
04. I am (play, playing, to play) soccer.
05. we usually go to school (on, at,by) bike.
06. Are you watching television? Yes,( I do, I am, you are )
07. How (does/ do /is ) Mr Ba travel to Ho Chi Minh City ?
08. There ( are/ am/ is ) a lake near my houre .
09. The children ( plays/ playing/ play ) soccer in the garden every afternoon.
10. My sister always ( brush/ brushes/ brushing ) her teeth after dinner.
11. My brother ( has/ have/ are ) two children .
12. You ( must/ can/ canot ) go into " One way" street.
13. My brother and I (watch/ watches/ watching) TV every evening.
14. His class is on the (three/ third/ thirdth) floor.
15. A paddy field is a rice ( garden/ yard / paddy).
16. This is ( he/ you/ her) new classmate.
17. There is a well ( next/ behind/ to the left) Minh's house.
18. which (class/ grade/ chool) are you in? - 7A
19. What time do you (get/ has/ have) breakfast?
20. Where do you ( get/ live/ go) - in HaNoi.
21. I usually go to bed (at/ on/ in) 10 o'clock.
22. ( Are/ Does/ Is) your school big or small?
23. It is (Nam/ Nam's/ Nams') ruler.
24. Ha is a student. She is (of/ on/ in) grade 6,class6C.
25. We have literature (on/ in/ at) Monday and Wednesday.
26. Do you like music? ( Yes, I do / Yes,I does / No, I am not).
27. ( What/ How/ When) do you do every morning?
28. (Which/ where/ When) school do you go to?
29. She (finish/ finishes/ finishs) her homework at 11 o'clock.
30. ( How many/ How much/ What) floors does it have?
31. Her house is between a bookshop (and/ of/ with) a restaurant.
33. ( Is/ Has/ Does) she live in a big city? -Yes, she does.
34. ( What/ Which/ Where) is your school? - On Quang Trung Street.
35. Is there a bookstore near here? Yes, (there are/ it is/ there is).
36. My father (work/ to work/ works) in a hospital.
37. Hoa is ( rides/ riding/ driving) her bike to school.
38. The lights are red. You ( can/ must/ can't) stop.
39. Where's Tam going? - He is going (from/ to/ at) work.
40. The sign says"No turn left".We (can/ must/ mustn't) turn left.
41. Are there ( some/ any/ a ) trees near your house?
42. ( How/ What/ Who) does he do? - He's a teacher.
43. We are ( at/ on/ in) our living room.
44. He is driving a truck. He’s a truck ( driver / rider / teacher / engineer )
45. He lives in the country. It’s very ( small / big / quiet / old ) there.
46. There aren’t (any, a , some) stores here.
47. (What,Which, How) do you go to the zoo?
48. What time does your mother go to bed? . ( At, On ,In) ten o’clock
49. He (go ,is going ,goes) to school by bike every day
50. There is a restaurant (to the left, next, behind) to my house.

7

T

❑T͙ɦáⓃⓗᵛᶰシ⒝ựɑᵛᶰシ2020ᵛᶰシ◎

31 tháng 7 2018

dài vậy ai làm được

VA

Vy Airis

3 tháng 12 2018

Ngắn mà tui làm

1.on

2.are

3.how

4.to play

5.by

6.I do

7.does

8.is

9.plays

10.brushes

sson 1. Lan in the apartment number? Lan house is in an 8 storey house, each floor has 8 apartments. One day, the class asked Lan: "What is your house in the apartment?" "Ask me some questions, I will answer all your questions, but just say" yes "or" no. "Through these questions you try to figure out how many in the apartment" Huy said: "I will ask, are you in the apartment number 1, number 2, ..., No. 63. So with most 63 questions you will know which apartment you. You say, "I only need 14...

C

cubi2005

30 tháng 6 2017

sson 1. Lan in the apartment number? Lan house is in an 8 storey house, each floor has 8 apartments. One day, the class asked Lan: "What is your house in the apartment?" "Ask me some questions, I will answer all your questions, but just say" yes "or" no. "Through these questions you try to figure out how many in the apartment" Huy said: "I will ask, are you in the apartment number 1, number 2, ..., No. 63. So with most 63 questions you will know which apartment you. You say, "I only need 14 questions, 7 sentences enough to know what floor you are on and 7 you can know exactly what you are in the apartment." Dear children, I have to ask several times to know. How are you Lan in the apartment?

Lesson 2. Game together across the bridge. Four people need to cross a bridge. Because of the weak demand, each time we go not more than two people, and because it is dark, we have to take the light. Four people walk differently, crossing the bridge with corresponding time of 10 minutes, 5 minutes, 2 minutes and 1 minute. Since there is only one lamp, each passage must be carried back to the next person. When two people go together, cross the bridge with a slower time. The following example is a way to go: - 10 minutes to go with people 5 minutes to bridge, 10 minutes to take. - 5 minutes to take the lamp back, take 5 minutes. - 5 minutes to go with people 2 minutes through the bridge, It takes 5 minutes. - 2 minutes to take the lamp back, take 2 minutes. - 2 minutes with people 1 minute over the bridge, take 2 minutes. Total time is 10 + 5 + 5 + 2 + 2 = 24 minutes. Let's try to get away with a little less time as possible, and if less than 19 minutes is great

Lesson 3. Cashmere. Mallard buys 27 apples that are identical in size and volume. However, the salesman said that of the apples on the right is a slightly lighter weight. You use a table scales on both sides to find the apple that light. The minimum number of weighs required. Let's help you find that little apple. If they find that fruit after less than 5 weightings, then it is good.

5

I

inuyasha

30 tháng 6 2017

mình dịch cho:

Sson 1. Lan trong số căn hộ? Lan nhà ở trong một ngôi nhà 8 tầng, mỗi tầng có 8 căn hộ. Một ngày kia, lớp học hỏi Lan: "Ngôi nhà của bạn trong căn hộ là gì?" "Hỏi tôi một số câu hỏi, tôi sẽ trả lời tất cả các câu hỏi của bạn, nhưng chỉ nói" có "hoặc" không. Huy nói: "Tôi sẽ hỏi bạn ở trong căn hộ số 1, số 2, ..., số 63. Vậy với 63 câu hỏi bạn sẽ biết "Tôi chỉ cần 14 câu hỏi, 7 câu đủ để biết bạn đang ở tầng nào và 7 bạn có thể biết chính xác bạn đang ở trong căn hộ." Các bạn thân mến, tôi phải hỏi nhiều lần để biết. Bạn Lan như thế nào trong căn hộ?

Bài học 2. Trò chơi với nhau qua cây cầu. Bốn người cần băng qua cầu. Bởi vì nhu cầu yếu, mỗi lần chúng ta đi không quá hai người, và bởi vì trời tối, chúng ta phải lấy ánh sáng. Bốn người đi bộ khác nhau, vượt cầu với thời gian tương ứng là 10 phút, 5 phút, 2 phút và 1 phút. Vì chỉ có một đèn, mỗi đoạn văn phải được mang về cho người kế tiếp. Khi hai người đi cùng nhau, băng qua cầu với thời gian chậm hơn. Ví dụ sau đây là một cách để đi: - 10 phút để đi với người dân 5 phút để cầu, 10 phút để đi. - 5 phút để lấy đèn trở lại, mất 5 phút. - 5 phút để đi với người 2 phút qua cây cầu, mất 5 phút. - 2 phút để lấy đèn trở lại, mất 2 phút. - 2 phút với người 1 phút qua cây cầu, mất 2 phút. Tổng thời gian là 10 + 5 + 5 + 2 + 2 = 24 phút. Hãy cố gắng để có được đi với một ít thời gian càng tốt, và nếu ít hơn 19 phút là tuyệt vời

Bài học 3. Cashmere. Mallard mua 27 quả táo giống hệt nhau về kích cỡ và khối lượng. Tuy nhiên, nhân viên bán hàng nói rằng của táo bên phải là một trọng lượng nhẹ hơn. Bạn sử dụng một bảng vảy trên cả hai mặt để tìm táo mà ánh sáng. Số lượng yêu cầu tối thiểu. Hãy giúp bạn tìm thấy quả táo nhỏ. Nếu họ tìm thấy trái cây sau khi ít hơn 5 trọng số, thì nó là tốt.

TT

Tran Thi Tuyet Mai

5 tháng 8 2017

dvf cx

Question 1:51 hours = days(Write your answer by decimal in the simplest form)Question 2:5 minutes 27 seconds: 3 = seconds.Question 3:12 hours 24 minutes 2 = hours.(Write your answer by decimal in the simplest form)Question 4:0.6 hour = minutes.Question 5:How fast is Anna going if she runs 8 miles in the park in only 2 hours?Answer: mile/hour.Question 6:Yesterday Peter roller skated for 2.5 hours at a speed of 6 km/h. How many kilometers did he skate?Answer: km. Question 7:How fast is...

BC

bất cần

17 tháng 4 2016