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13 tháng 6 2018

Carl was correct

Each year has 12 months and there are 13 commuters on the eastbound subway, so at least there are 2 commuters were born in the same month

~Hok tốt nha~

16 tháng 6 2018

Bài 1: First task:

Let \(x\) be the number of sparrows on the first lamp post at first. (\(x\) is a positive integer).

\(\Rightarrow16-x\)is the number of sparrows on the second lamp post at first.

We have: \(x-2+3=16-x+2-3\Leftrightarrow2x=14\Leftrightarrow x=7\)

Hence there are 7 sparrows on the first lamp post at first, 9 sparrows on the second lamp post at first.

Bài 2: Second Task

We can find 2 students who were born on the same day.

There are 30 days in April and 31 students were born on that month. Apply the Dirichlet 's theorem, we can ensure that threre exists at least one day where 2 students were born.

13 tháng 4 2020

Ít nhất có bao nhiêu trong số 119 đứa trẻ được sinh ra trong cùng một tháng?

ko hiểu câu hỏi lắm

.................

13 tháng 4 2020

Ít nhất có bao nhiêu trong số 119 đứa trẻ được sinh ra trong cùng một tháng?

# hok tốt #

20 tháng 6 2018

Hai kệ sách tất cả chứa 120 cuốn sách .

Chuyển 20 cuốn sách từ kệ thứ nhất sang kệ thứ hai.

Chuyển 30 cuốn sách từ kệ thứ hai sang kệ thứ nhất.

Hai kệ bây giờ có số sách bằng nhau.

Có bao nhiêu cuốn sách trên mỗi kệ lúc đầu?

Giải 

Chuyển 20 cuốn sách từ kệ thứ nhất sang kệ thứ hai và chuyển 30 cuốn sách từ kệ thứ hai sang kệ thứ nhất tức là chuyền 10 cuốn sách từ kệ thứ hai sang kệ thứ nhất thì số sách ở hai kệ bằng nhau.

Suy ra lúc đầu kệ thứ hai hơn kệ thứ nhất là : 10+10=20 (cuốn sách)

mà tổng số sách ở hai kệ là 120 cuốn

=> Số sách ở kệ thứ nhất là : (120-20):2=100:2=50 (cuốn) 

<=> Số sách ở kệ thứ hai là : 120-50=70(cuốn) 

Vậy kệ thứ nhất có 50 cuốn sách và kệ thứ hai có 70 cuốn sách

20 tháng 6 2018

Hai kệ bây giờ có số sách bằng nhau.

Chuyển 30 cuốn sách từ kệ thứ hai sang kệ thứ nhất.

Chúc bạn học tốt

19 tháng 12 2016

WRITE ONE SUITABLE WORD

Jack London was born in San Francisco, California, in 1876. He took a high place in American literature at the beginning of the twentieth century At that time, the library shelves and bookshops of America were already full of books by famous writers But Jack London's stories were new ones, his were not like the ones in the books of other writers, and the picture he painted weren't the same as their pictures.

19 tháng 12 2016

Jack London was born in San Francisco, California, in 1876. He took a high place in American literature at the beginning of the twentieth century At that time, the library shelves and bookshops of America were already full of books by famous writers But Jack London's stories were new one, his were not like the ones in the books of other writers, and the picture he painted weren't the same as their pictures.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42. Franklin D. Roosevelt, the 32nd president of the United States, was from a wealthy, well-known family. As a child, he attended private school, had private tutors, and traveled with his parents to Europe. He attended Harvard University, and afterward studied law. At age 39 Roosevelt suddenly developed polio, a disease that left him without the...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

Franklin D. Roosevelt, the 32nd president of the United States, was from a wealthy, well-known family. As a child, he attended private school, had private tutors, and traveled with his parents to Europe. He attended Harvard University, and afterward studied law. At age 39 Roosevelt suddenly developed polio, a disease that left him without the full use of his legs for the rest of his life. Even through the worst of his illness, however, he continued his life in politics. In 1924 he appeared at the Democratic National Convention to nominate Al Smith for president, and eight years after that he himself was nominated for the same office. Roosevelt was elected to the presidency during the Great Depression of the 1930s, at a time when more than 5,000 banks had failed and thousands of people were out of work. Roosevelt took action. First he declared a bank holiday that closed all the banks so no more could fail; then he reopened the banks little by little with government support. Roosevelt believed in using the full power of government to help what he called the "forgotten people." And it was these workers, the wage earners, who felt the strongest affection toward Roosevelt. There were others, however, who felt that Roosevelt's policies were destroying the American system of government, and they opposed him in the same intense way that others admired him.

In 1940 the Democrats nominated Roosevelt for an unprecedented third term. No president in American history had ever served three terms, but Roosevelt felt an obligation not to quit while the United States' entry into World War II was looming in the future. He accepted the nomination and went on to an easy victory.

The phrase "took action" in lines 13 is used to illustrate the idea that Roosevelt

A. performed admirably

B. exerted himself physically

C. responded immediately

D. got assistance

1
5 tháng 10 2019

Đáp án C

Cụm từ “ take action” ở dòng 13 được dùng để minh họa cho ý kiến rằng Roosevelt đã ..

a- Trình diễn một cách đáng ngưỡng mộ => không liên quan

b- Sử dụng sức lực bản thân => ahihi liên quan nhở

c- Đáp trả ngay lập tức => chuẩn luôn “ Take action” nghĩa là hành động mà

d- Có sự trợ giúp 

Fill in the gap with one suitable words Enrico Rastelli Enrico Rastelli was probably the greatest juggler the world has ever known. Juggling involves throwing(1)........................number of objects up into the air and catching them (2)................dropping a single one. Rastelli was able to juggle(3)..............many as eight balls at the same time. However,(4).............made him a genius was his perfect style, rather(5)...................the quantity of objects...
Đọc tiếp

Fill in the gap with one suitable words

Enrico Rastelli

Enrico Rastelli was probably the greatest juggler the world has ever known. Juggling involves throwing(1)........................number of objects up into the air and catching them (2)................dropping a single one. Rastelli was able to juggle(3)..............many as eight balls at the same time. However,(4).............made him a genius was his perfect style, rather(5)...................the quantity of objects he(6)..........juggle.

Rastelli's contributions to juggling were many. He started using rubber balls(7).........of the cotton balls that were(8)...............use at the time.These rubber balls are now standard. It was Rastelli,too, who began the now commonly seen practice(9)..............throwing a ball into the air,and then catching(10)....................on a stick held in his mouth.

Enrico Rastelli was born into a circus family in Siberia in 1896. Although he spent some of his early years in Italy, it(11)...............in Russia that he acquired his juggling skills. It was not uncommon(12).............him to practise twelve hours a day, and this dedication was reflected in his astonishing performances. The degree of control shown(13)..............Enrico Rastelli has never been equalled.

1
23 tháng 1 2019

Fill in the gap with one suitable words

Enrico Rastelli

Enrico Rastelli was probably the greatest juggler the world has ever known. Juggling involves throwing(1)....a.....number of objects up into the air and catching them (2).....without......dropping a single one. Rastelli was able to juggle(3)....as.....many as eight balls at the same time. However,(4)....what......made him a genius was his perfect style, rather(5).......than......the quantity of objects he(6)...could.....juggle.

Rastelli's contributions to juggling were many. He started using rubber balls(7)...instead....of the cotton balls that were(8)......in...use at the time.These rubber balls are now standard. It was Rastelli,too, who began the now commonly seen practice(9).....of.....throwing a ball into the air,and then catching(10)........it....on a stick held in his mouth.

Enrico Rastelli was born into a circus family in Siberia in 1896. Although he spent some of his early years in Italy, it(11)......was.......in Russia that he acquired his juggling skills. It was not uncommon(12).....for...him to practise twelve hours a day, and this dedication was reflected in his astonishing performances. The degree of control shown(13)....by......Enrico Rastelli has never been equalled.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42. Franklin D. Roosevelt, the 32nd president of the United States, was from a wealthy, well-known family. As a child, he attended private school, had private tutors, and traveled with his parents to Europe. He attended Harvard University, and afterward studied law. At age 39 Roosevelt suddenly developed polio, a disease that left him without the...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

Franklin D. Roosevelt, the 32nd president of the United States, was from a wealthy, well-known family. As a child, he attended private school, had private tutors, and traveled with his parents to Europe. He attended Harvard University, and afterward studied law. At age 39 Roosevelt suddenly developed polio, a disease that left him without the full use of his legs for the rest of his life. Even through the worst of his illness, however, he continued his life in politics. In 1924 he appeared at the Democratic National Convention to nominate Al Smith for president, and eight years after that he himself was nominated for the same office. Roosevelt was elected to the presidency during the Great Depression of the 1930s, at a time when more than 5,000 banks had failed and thousands of people were out of work. Roosevelt took action. First he declared a bank holiday that closed all the banks so no more could fail; then he reopened the banks little by little with government support. Roosevelt believed in using the full power of government to help what he called the "forgotten people." And it was these workers, the wage earners, who felt the strongest affection toward Roosevelt. There were others, however, who felt that Roosevelt's policies were destroying the American system of government, and they opposed him in the same intense way that others admired him.

In 1940 the Democrats nominated Roosevelt for an unprecedented third term. No president in American history had ever served three terms, but Roosevelt felt an obligation not to quit while the United States' entry into World War II was looming in the future. He accepted the nomination and went on to an easy victory.

It can be inferred from the passage that the people who liked Roosevelt best were

A. poor people

B. bankers

C. rich people

D. average workers

1
7 tháng 9 2017

Đáp án D

a- Người nghèo

b- Chủ ngân hàng

c- Người giàu

d- Công nhân trung bình

=> Chọn D ( vì trong bài có đề cập “ these workers, wage earners” )

12 tháng 6 2018

D

Tạm dịch:

“Nếu bố là con, tôi sẽ không bao giờ mở TV lớn giữa đêm.” Người đàn ông nói với cô con gái.

D. Người bố khuyên con gái mình không nên mở TV to tiếng giữa đêm.