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31 tháng 7 2018

11 số nguyên dương liên tiếp được viết trên bảng. Maria xóa một trong những số. Nếu tổng 10 số còn lại là 2012, Maria xóa số nào?

    Bài giải:

Gọi số đầu tiên là a thì 11 số liên tiếp là a + 1 đến a+ 10
tổng của 11 số đó là 11 a + 55
Vì tuấn xóa đi 1 số nên tổng của 10 số sẽ thuộc [10a + 45 , 9a + 55]

..........

Mik làm mới đến chỗ nầy thôi bạn tự làm tiếp nhé!

31 tháng 7 2018

Bạn ơi!Bạn dựa theo bài này mà làm nhé!           .............  Hok Tốt nhé  ..............

Tuấn xoá đi 1 trong 10 số nguyên
dương liên tiếp. Tổng của 9 số
còn lại bằng 2006. Hỏi Tuấn đã
xoá đi số nào?

gọi số đầu tiên là a thì 10 số liên tiếp là a + 1 đến a+ 9
tổng của 10 số đó là 10a + 45
vì tuấn xóa đi 1 số nên tổng của 9 số sẽ thuộc [9a+36 , 9a + 45]
ta có 2006 = 9.222 + 8 = 9.218 + 44 => a = 218 => số đã xóa là 218 .10 + 45 - 2006 = 219
 

21 tháng 12 2016

Một vài số khác nhau đã được viết trên bảng.Có hai số chia hết cho 3 và 9 trong số đó chia hết cho 13. Cho M là số lớn nhất trong các số đó. Số nhỏ nhất có thể là M?

29 tháng 7 2018

223 nha bạn chắc chắn lun đó

cho mk 1 ik nha

29 tháng 7 2018

223 nha bạn chắc chắn lun đó

cho mk 1 ik nha

31 tháng 10 2016

Mình có 4 đáp số:

13 41 22 14

1 tháng 4 2017

cho dạng đúng của từ
- Has your sister got a .... headache.... (HEAD)
- Maria's uncle is very famous ....scientist....... (SCIENCE)
-David's old jacket was so ...worn... that he had to buy a new one. (WEAR)
-The cost of ...carriage...... must be paid by the buyer. (CARRY)
-During his speech, he keep on ...straightening... his tie. (STRAIGHT)
-The water in this area is .... impure ... and should not be drunk. (PURE)

1 tháng 4 2017

-headache

-sciencan

còn lại mik chưa bít

29 tháng 11 2021

7,429 has 4 digits
it: 7, 4, 2, 9
264 has 3 digits
it: 2, 6, 4

(Hép miiiiii) Exercise 3 1. The science classes at this ______ difficult. a. schools are b. school is c. school are d. school's is 2. One of the ______ from Italy. a. student is b. students are c. student are d. student is 3. ______ to support the case against James? a. Is there any proof b. Are there any proof c. Is there any proofs d. Are there any proofs 4. You have to pay extra if you take too______ with you. a. much luggages b. many luggages c. much luggage d. may luggage 5. ______ in...
Đọc tiếp

(Hép miiiiii)

Exercise 3

1. The science classes at this ______ difficult.
a. schools are b. school is c. school are d. school's is
2. One of the ______ from Italy.
a. student is b. students are c. student are d. student is
3. ______ to support the case against James?
a. Is there any proof b. Are there any proof
c. Is there any proofs d. Are there any proofs
4. You have to pay extra if you take too______ with you.
a. much luggages b. many luggages c. much luggage d. may luggage
5. ______ in your lass have tickets for the lecture series?
a. Do any of the student b. Does any of the student
c. Do any of the students d. Does any of the students
6. Bob got fired. It's going to be difficult for him to find job.
a. other b. another c. the other d. the another
7. There______ available in his area of specialization.
a. isn’t a lot of job b. aren't a lot of jobs c. isn't a lot of jobs d. aren't a lot of job
8. He made the soup by mixing______ meat with some rice.
a. little b. few c. a little d. a few
9. Many of the ______ not expect to win.
a. participants in the race do b. participants in the races does
c. participants in the race does d. participant in the race does
10. The English______ strong traditions.
a. has many b. have much c. have many d. has much
11. ______ moved to that city recently.
a. A number of Vietnamese have b. A number of Vietnamese has
c. The number of Vietnamese has b. The number of Vietnamese have
12. Each of the reference _____ available in the school library.
a. books on that list is b. books on that list are
c. books on that list is d. book on that list are
13. Several____ sleeping under a tree.
a. of lions were b. lion was c. of the lions was d. lions were
14. Many of the ____ not used to day. They are remnants of the past.
a. railroad tracks around here are b. railroad's tracks around here is
c. railroad tracks around here is d. railroad's tracks around here are
15. As we walked through the jungle, the ____ unusually quiet.
a. monkeys were b. monkeys was c. monkies were d. monkies was
16. At the news conference, several reporters didn't get clear answer to _____ questions.
a. theirs b. their c. his and hers d. his and her
17. I have a _____ sister.

a. seven years old b. seven years old c. seven year old d. seven year olds
18. There_____ in the world today.
a. is any new computer company b. is many new computer companies
c. are many new computer companies d. are many new computer companies
19. Self-esteem is important. It's important for people to like _____
a. oneself b. yourself c. him/herself d. themselves
20. What_____ you used in picking a winner in the art contest?
a. is the criteria b. are the criteria c. are the criterion d. are the riterions
Exercise 4
1. Mathematics_____ very interesting to me.
a. are b. have been c. were d. is
2. Down_____ for three days
a. the rain poured b. did the rain pour c. poured the rain d. do the rain pour
3. Twenty dollars_____ the price.
a. are b. is c. being d. were
4. A number of graduates_____ scholarships from this department.
a. have received b. has received c. are received d. receives
5. Pollution together with water erosion_____ its toll on the building.
a. are taking b. is taking c. have taking d. have taken
6. Most of the rooms in the hotel _____ air-conditioning.
a. has b. having c. have d. are
7. A few_____ the test.
a. have failed b. has failed c. is failing d. failing
8. Under the tree_____ full of food.
a. a basket was b. was a basket c. are a basket d. were a basket
9. Both viruses and genes_____ made from nucleoproteins.
a. are b. is c. were d. has been
10. Coffee contains caffeine, and so_____
a. tea did b. does tea c. it does d. tea does
11. Mary, accompanied by her brother on the piano, _____ very well received at the talent show
yesterday.
a. was b. were c. have been d. has been
12. The smallest flying dinosaurs _____ about the size of a robin.
a. was b. are c. have d. been
13. My new pair of pants _____ at the cleaners.
a. is b. are c. be d. have been
14. Out_____ the bird from its tiny cage.
a. did the bird fly b. fly the bird c. did the bird fly d. flew the bird
15. The police_____ on the alert for the escaped convict.
a. are b. be c. can d. been
16. I'm happy that everything_____ in its place.
a. are b. been c. is d. have
17. One of my best friends_____ five credit cards.
a. have b. has c. does d. do
18. _____ an emergency arise, call 911.
a. Can b. Does c. Should d. Will
19. There_____ never been an environmental disaster of this magnitude.
a. has b. have c. are d. is
20. The news_____ quite alarming.
a. are b. have c.was d.were

2
16 tháng 6 2020

Exercise 3

1. The science classes at this ______ difficult.
a. schools are b. school is c. school are d. school's is
2. One of the ______ from Italy.
a. student is b. students are c. student are d. student is
3. ______ to support the case against James?
a. Is there any proof b. Are there any proof
c. Is there any proofs d. Are there any proofs
4. You have to pay extra if you take too______ with you.
a. much luggages b. many luggages c. much luggage d. may luggage
5. ______ in your lass have tickets for the lecture series?
a. Do any of the student b. Does any of the student
c. Do any of the students d. Does any of the students
6. Bob got fired. It's going to be difficult for him to find job.
a. other b. another c. the other d. the another
7. There______ available in his area of specialization.
a. isn’t a lot of job b. aren't a lot of jobs c. isn't a lot of jobs d. aren't a lot of job
8. He made the soup by mixing______ meat with some rice.
a. little b. few c. a little d. a few
9. Many of the ______ not expect to win.
a. participants in the race do b. participants in the races does
c. participants in the race does d. participant in the race does
10. The English______ strong traditions.
a. has many b. have much c. have many d. has much
11. ______ moved to that city recently.
a. A number of Vietnamese have b. A number of Vietnamese has
c. The number of Vietnamese has b. The number of Vietnamese have
12. Each of the reference _____ available in the school library.
a. books on that list is b. books on that list are
c. books on that list is d. book on that list are
13. Several____ sleeping under a tree.
a. of lions were b. lion was c. of the lions was d. lions were
14. Many of the ____ not used to day. They are remnants of the past.
a. railroad tracks around here are b. railroad's tracks around here is
c. railroad tracks around here is d. railroad's tracks around here are
15. As we walked through the jungle, the ____ unusually quiet.
a. monkeys were b. monkeys was c. monkies were d. monkies was
16. At the news conference, several reporters didn't get clear answer to _____ questions.
a. theirs b. their c. his and hers d. his and her
17. I have a _____ sister.

a. seven years old b. seven years old c. seven year old d. seven year olds
18. There_____ in the world today.
a. is any new computer company b. is many new computer companies
c. are many new computer companies d. are many new computer companies
19. Self-esteem is important. It's important for people to like _____
a. oneself b. yourself c. him/herself d. themselves
20. What_____ you used in picking a winner in the art contest?
a. is the criteria b. are the criteria c. are the criterion d. are the riterions
Exercise 4
1. Mathematics_____ very interesting to me.
a. are b. have been c. were d. is
2. Down_____ for three days
a. the rain poured b. did the rain pour c. poured the rain d. do the rain pour
3. Twenty dollars_____ the price.
a. are b. is c. being d. were
4. A number of graduates_____ scholarships from this department.
a. have received b. has received c. are received d. receives
5. Pollution together with water erosion_____ its toll on the building.
a. are taking b. is taking c. have taking d. have taken
6. Most of the rooms in the hotel _____ air-conditioning.
a. has b. having c. have d. are
7. A few_____ the test.
a. have failed b. has failed c. is failing d. failing
8. Under the tree_____ full of food.
a. a basket was b. was a basket c. are a basket d. were a basket
9. Both viruses and genes_____ made from nucleoproteins.
a. are b. is c. were d. has been
10. Coffee contains caffeine, and so_____
a. tea did b. does tea c. it does d. tea does
11. Mary, accompanied by her brother on the piano, _____ very well received at the talent show
yesterday.
a. was b. were c. have been d. has been
12. The smallest flying dinosaurs _____ about the size of a robin.
a. was b. are c. have d. been
13. My new pair of pants _____ at the cleaners.
a. is b. are c. be d. have been
14. Out_____ the bird from its tiny cage.
a. did the bird fly b. fly the bird c. did the bird fly d. flew the bird
15. The polices_____ on the alert for the escaped convict.
a. are b. be c. can d. been
16. I'm happy that everything_____ in its place.
a. are b. been c. is d. have
17. One of my best friends_____ five credit cards.
a. have b. has c. does d. do
18. _____ an emergency arise, call 911.
a. Can b. Does c. Should d. Will
19. There_____ never been an environmental disaster of this magnitude.
a. has b. have c. are d. is
20. The news_____ quite alarming.
a. are b. have c.was d.were

17 tháng 6 2020

Cảm ơn chị ạ

15 tháng 6 2018

1. This seems to be the only possible ___________.
A. importance C. likelihood C. solution D. suggestion
2. I am very ___________ for not meeting you.
A. convenient B. apologetic C. grateful D. pleasant
3. He made a(n) ___________ to help her with the heavy bags.
A. request B. appointment C. piece of advice D. an offer
4. They had ___________ money with them, so they couldn't buy the sofa they liked.
A. few B. little C. more D. some
6. Maria ___________ that exam a week before she applied for the job.
A. had passed B. passed C. had been passed D. had passed
7. We will be there if it ___________.
A. won't rain B. would not rain C. did not rain D. does not rain

15 tháng 6 2018

1. This seems to be the only possible ___________.
A. importance C. likelihood C. solution D. suggestion
2. I am very ___________ for not meeting you.
A. convenient B. apologetic C. grateful D. pleasant
3. He made a(n) ___________ to help her with the heavy bags.
A. request B. appointment C. piece of advice D. an offer
4. They had ___________ money with them, so they couldn't buy the sofa they liked.
A. few B. little C. more D. some
6. Maria ___________ that exam a week before she applied for the job.
A. had passed B. passed C. had been passed D. had passed
7. We will be there if it ___________.
A. won't rain B. would not rain C. did not rain D. does not rain

Bạn chỉ cần cảm ơn bằng cách cày view:

BLACKPINK - ‘뚜두뚜두 (DDU-DU DDU-DU)’ M/V - YouTube

Scarlet on the arms.Paint my life at the moment.Since that day he was still dreaming.Until I was indifferent.His heart is not good.One day when fluttering fly.From lover to person.Until I call myself.Love your small shoulders.The eyes turned cloudy night.Love stars smell of incense.United questions forever on the shelf.Adventure life trying to find a sincere person.Although the sky is expecting you to miss me.The other birds still have a couple.Why not spousal number.Baby don't leave me.The...
Đọc tiếp

Scarlet on the arms.
Paint my life at the moment.
Since that day he was still dreaming.
Until I was indifferent.
His heart is not good.
One day when fluttering fly.
From lover to person.
Until I call myself.
Love your small shoulders.
The eyes turned cloudy night.
Love stars smell of incense.
United questions forever on the shelf.
Adventure life trying to find a sincere person.
Although the sky is expecting you to miss me.
The other birds still have a couple.
Why not spousal number.
Baby don't leave me.
The moon tries to hold me back.
Peace on the roof.
See life upstream.
Are you still with me?
Heaven gave the light, April years surface.
Who's about the same path.
Sunbeams.
But why is it still dark?
Tomorrow I accidentally stumble on life.
Looking at him, who did not make me lonely.

Oh! If I have to.
I will bring all the thoughts.
Bring all the luggage.
Those days of misery.
Let the sea breeze migrate.
He would rather floating no day to return.
Life-cycle chemistry as water Margin.
Not to me from a little girl.
Waves surrounded the devil.
We push ourselves or bind ourselves.
Now it is no different.
I am not bothered or cannot speak.
We are no different.
Love stars spread pen strokes.
Although people do not expect to come later.
Colored town lights we just need the same way.
To die for each other also.
Pick up a branch of fallen flowers.
The way home is sad dear.
The rush of people now.
My love, my love, where are you?
Silently looking at the old shoulders.
I asked my headrest that suffering yet.
Heartfelt blocking the road now.
Don't go don't go don't go for the promise.
The light of the year of April blows away.
Who's about the same path.
Sunbeams.
But why is it still dark?
Tomorrow I accidentally stumble on life.
Looking at him, who did not make me lonely.
Sadly, one day the clothes are sewn.
Silently watched the river flow for minutes of recovery.
This one time, my dear, please stay.
Everything is in pain.
It's just a storm outside.
The light of the year of April blows away.
Who's about the same path.
Sunbeams.
But why is it still dark?
Tomorrow I accidentally stumble on life.
Looking at him, who did not make me lonely.
People are still here.
People are thousands of miles away.
Not leaving until drunk.
Any wine is bitter.
This long distance is empty.
Who let go of an oath.
Only nostalgia remain.
Every day my love story shattered.
Damaged to miss the village.
Back away.
My life is not equal to people.
Whine.

GIÚP MÌNH DỊCH VỚI!

1
18 tháng 3 2020

Đỏ tươi trên cánh tay. Vẽ cuộc sống của tôi tại thời điểm này. Từ hôm đó anh vẫn mơ. Cho đến khi tôi thờ ơ. Trái tim anh không tốt. Một ngày nọ bay lượn. Từ người yêu đến người. Cho đến khi tôi gọi cho mình. Yêu đôi vai nhỏ của bạn. Đôi mắt biến thành mây đêm. Yêu sao mùi hương. Hoa câu hỏi mãi mãi trên kệ. Cuộc sống phiêu lưu cố gắng tìm một người chân thành. Mặc dù bầu trời đang mong bạn nhớ tôi. Những con chim khác vẫn có một đôi. Tại sao không phải là số vợ chồng. Em đừng rời xa anh. Mặt trăng cố giữ tôi lại. Bình yên trên mái nhà. Xem cuộc sống thượng nguồn. Bạn vẫn còn với tôi? Trời ban ánh sáng, tháng năm bề mặt. Ai về cùng một con đường. Tia nắng. Nhưng tại sao trời vẫn tối? Ngày mai tôi vô tình vấp ngã trên đời. Nhìn anh, người không làm tôi cô đơn. Oh! Nếu tôi phải. Tôi sẽ mang tất cả những suy nghĩ. Mang theo tất cả hành lý. Những ngày khốn khổ. Hãy để gió biển di cư. Anh thà nổi không có ngày trở về. Hóa học vòng đời như nước Margin. Không phải với tôi từ một cô bé. Sóng vây quanh quỷ dữ. Chúng ta tự đẩy mình hoặc trói buộc chính mình. Bây giờ nó không khác. Tôi không bận tâm hoặc không thể nói. Chúng tôi không khác nhau. Tình yêu sao trải bút. Mặc dù mọi người không mong đợi đến sau. Đèn thị trấn màu chúng ta chỉ cần cùng một cách. Để chết cho nhau cũng được. Nhặt một cành hoa rơi. Đường về nhà buồn lắm. Sự vội vàng của mọi người bây giờ. Tình yêu của anh, tình yêu của anh, em ở đâu? Âm thầm nhìn đôi vai già nua. Tôi hỏi tựa đầu mà đau khổ chưa. Chân thành chặn đường bây giờ. Đừng đi đừng đi đừng hứa. Ánh sáng của tháng tư thổi đi. Ai về cùng một con đường. Tia nắng. Nhưng tại sao trời vẫn tối? Ngày mai tôi vô tình vấp ngã trên đời. Nhìn anh, người không làm tôi cô đơn. Đáng buồn thay, một ngày quần áo được may. Âm thầm theo dõi dòng sông trong vài phút hồi phục. Lần này em ơi, xin hãy ở lại. Mọi thứ đều đau đớn. Nó chỉ là một cơn bão bên ngoài. Ánh sáng của tháng tư thổi đi. Ai về cùng một con đường. Tia nắng. Nhưng tại sao trời vẫn tối? Ngày mai tôi vô tình vấp ngã trên đời. Nhìn anh, người không làm tôi cô đơn. Mọi người vẫn ở đây. Mọi người ngàn dặm. Không say không về. Rượu nào cũng đắng. Khoảng cách dài này là trống rỗng. Ai buông lời thề. Chỉ còn nỗi nhớ. Mỗi ngày chuyện tình của tôi tan vỡ. Thiệt hại vì nhớ làng. Lùi đi. Cuộc sống của tôi không bằng người. Rên rỉ.