7. A ribbon is 180 cm long. Symbols are marked from one end in every 3 cm and every 5 cm. Then this ribbon is cut at all these symbols. How many shorter ribbons can be obtained?

ND

Nguyễn Đức Tài

13 tháng 10 2017

toán quốc tế mà lị

PN

Phạm Ngọc Minh

15 tháng 6 2018

Two pieces of ribbon have the same length.

15 cm from each ribbon are used tie a butterfly knot . The total length of the two ribbon then becomes 60 cm.

How long is each piece of ribbon?

các bn giúp mik câu này với.

cảm ơn các bn rất nhìu ^ ^

#Tiếng anh lớp 6

1

EG

Emma Granger

15 tháng 6 2018

Dịch: 2 đoạn dây ruy băng có độ dài bằng nhau. Người ta cắt 2 đoạn ruy băng dài 15 cm từ hai dây ruy băng để làm nút thắt hình con bướm. Tổng độ dài hai dây ruy băng là 60cm.Tính độ dài mỗi đoạn ruy băng?

Giải:
Tổng độ dài của đoạn ruy băng được dùng để làm nút hình con bướm là: 15.2=30 cm
Độ dài của mỗi đoạn ruy băng là: (60 - 30):2=15cm
Vậy độ dài của mỗi đoạn ruy băng là 15cm.

Chúc cậu học tốt!

PN

Phạm Nguyễn Hưng Phát

3 tháng 12 2021

A rope 580 cm long is to be cut into 40 cm and 90 cm segments without any wastage. How many ways are there to do this?

#Tiếng anh lớp 4

1

NN

Nguyễn Ngọc Khánh Huyền

3 tháng 12 2021

Tạm dịch:
Một sợi dây dài 580 cm sẽ được cắt thành các phân đoạn 40 cm và 90 cm mà không có bất kỳ lãng phí nào. Có bao nhiêu cách để làm điều này?

PN

Phạm Nguyễn Hưng Phát

3 tháng 12 2021

Có phải dịch đâu, làm bài mà?

Read the text and then choose the best answer A, B, C, or D.Visit the Edinburgh FestivalEvery year, thousands of people come to Edinburgh, the capital city of Scotland, to be part of the Edinburgh Festival. For three weeks every August and September the city is filled with actors and artists from all over the world. They come to Edinburgh for the biggest arts festival in Britain. During this time, the streets of the city are alive with music and dance from early in the morning untill late at...

LQ

Lê Quỳnh Anh

25 tháng 10 2019

#Tiếng anh thí điểm lớp 7

1

DH

Dương Hoàn Anh

25 tháng 10 2019

Đáp án B

Thông tin: Every year, thousands of people come to Edinburgh.

Mỗi năm, có hàng ngàn người đến Edinburgh.

Read the text and then choose the best answer A, B, C, or D.Visit the Edinburgh FestivalEvery year, thousands of people come to Edinburgh, the capital city of Scotland, to be part of the Edinburgh Festival. For three weeks every August and September the city is filled with actors and artists from all over the world. They come to Edinburgh for the biggest arts festival in Britain. During this time, the streets of the city are alive with music and dance from early in the morning untill late at...

DM

Dương Minh

19 tháng 7 2018

#Tiếng anh lớp 9

1

NH

Nguyen Hoang Hai

19 tháng 7 2018

Đáp án: B

Thông tin: Every year, thousands of people come to Edinburgh.

Dịch: Mỗi năm, có hàng ngàn người đến Edinburgh.

Change these sentences into the passive voice. 1.) People grow rice in these fields. 2.) Nam can repair his bicycle. 3.) Mary helps her grandmother every weekend. 4.) The workers will build many new houses in that area next year. 5.) Mai irons her clothes every evening. 6.) Linda types the reports in this office. Change these passive sentences into the active voice. 1.) Many bridges will be built by the workers next year. 2.) Nam is going to be invited to the birthday party by...

CA

Cuong Anh

17 tháng 3 2018

#Tiếng anh lớp 6

3

NC

Nguyễn Công Tỉnh

17 tháng 3 2018

Change these sentences into the passive voice.

1.) People grow rice in these fields.

=>rice is grown in these fields.

2.) Nam can repair his bicycle.

=>his bicycle can be repaired by Nam

3.) Mary helps her grandmother every weekend.

=>Mary's grandmother is helped by her every weekend

4.) The workers will build many new houses in that area next year.

=>many new houses will be built in that area by the workers next year

5.) Mai irons her clothes every evening.

=>Mai's clothes are ironed by her every evening.

6.) Linda types the reports in this office.

=> the reports are typed in this office by Linda

Change these passive sentences into the active voice.

1.) Many bridges will be built by the workers next year.

=>the workers will build Many bridges next year.

2.) Nam is going to be invited to the birthday party by Hoa.

=>Hoa is going to invite Nam to the birthday party

3.) English is taught by miss Hong this year.

=>miss Hong teaches English this year.

4.) Flowers in the garden are cut by Lan's grandmother every morning.

=>Lan's grandmother cuts Flowers in the garden every morning.

5.) Rubbish mustn't be thrown carelessly by the city residents.

=>the city residents mustn't throw Rubbish carelessly

6.) Will a new school be built very soon?

=>Will they build a new school very soon?

7.) These doors should be shut before 9 p.m.

=>People should shut These doors before 9 p.m.

8.) A lot of work is done by the secretary every day.

=>the secretary does A lot of work every day.

9.) Many lakes and rivers are polluted by pollution from factories.

=>pollution from factories pollutes Many lakes and rivers

10.) Many trees are cut down to make paper.

=>They cut down Many trees make paper.

CA

Cuong Anh

17 tháng 3 2018

https://i.imgur.com/Ax03b3B.jpg

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 11 to 20.Although speech is generally accepted as the most advanced form of communication, there are many ways of communicating without using words. In every known culture, signals, signs, symbols, and gestures are commonly utilized as instruments of communication. There is a great deal of agreement among communication scientists as to what each of these methods is and how...

LQ

Lê Quỳnh Anh

21 tháng 11 2019

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 11 to 20.

Although speech is generally accepted as the most advanced form of communication, there are many ways of communicating without using words. In every known culture, signals, signs, symbols, and gestures are commonly utilized as instruments of communication. There is a great deal of agreement among communication scientists as to what each of these methods is and how each differs from the others. For instance, the basic function of any signal is to impinge upon the environment in such a way that it attracts attention, as, for example, the dots and dashes that can be applied in a telegraph circuit. Coded to refer to speech, the potential for communication through these dots and dashes—short and long intervals as the circuit is broken—is very great. Less adaptable to the codification of words, signs also contain agreed upon meaning; that is, they convey information in and of themselves. Two examples are the hexagonal red sign that conveys the meaning of stop, and the red and white swirled pole outside a shop that communicates the meaning of barber.

Symbols are more difficult to describe than either signals or signs because of their intricate relationship with the receiver’s culture perceptions. In some cultures, applauding in a theater provides performers with an auditory symbol of approval. In other cultures, if done in unison, applauding can be a symbol of the audience’s discontent with the performance. Gestures such as weaving and handshaking also communicate certain culture messages.

Although signals, signs, symbols, and gestures are very useful, they also have a major disadvantage in communication. They usually do not allow ideas to be shared without the sender being directly adjacent to the receiver. Without an exchange of ideas, interaction comes to a halt. As a result, means of communication intended to be used across long distances and extended periods must be based upon speech. To radio, television, and the telephone, one must add fax, paging systems, electronic mail, and the internet, and no one doubts but that there are more means of communication on the horizon.

The word it in paragraph 1 refers to ______.

A. signal

B. function

C. environment

D. way

1

DH

Dương Hoàn Anh

21 tháng 11 2019

Đáp án : A

Dịch cả câu: Chức năng cơ bản của bất kỳ tín hiệu nào là ảnh hưởng đến môi trường theo cách nó thu hút sự chú ý -> “it” là nó-> tín hiệu.

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 11 to 20.Although speech is generally accepted as the most advanced form of communication, there are many ways of communicating without using words. In every known culture, signals, signs, symbols, and gestures are commonly utilized as instruments of communication. There is a great deal of agreement among communication scientists as to what each of these methods is and how...

LQ

Lê Quỳnh Anh

10 tháng 7 2017

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 11 to 20.

Although speech is generally accepted as the most advanced form of communication, there are many ways of communicating without using words. In every known culture, signals, signs, symbols, and gestures are commonly utilized as instruments of communication. There is a great deal of agreement among communication scientists as to what each of these methods is and how each differs from the others. For instance, the basic function of any signal is to impinge upon the environment in such a way that it attracts attention, as, for example, the dots and dashes that can be applied in a telegraph circuit. Coded to refer to speech, the potential for communication through these dots and dashes—short and long intervals as the circuit is broken—is very great. Less adaptable to the codification of words, signs also contain agreed upon meaning; that is, they convey information in and of themselves. Two examples are the hexagonal red sign that conveys the meaning of stop, and the red and white swirled pole outside a shop that communicates the meaning of barber.

Symbols are more difficult to describe than either signals or signs because of their intricate relationship with the receiver’s culture perceptions. In some cultures, applauding in a theater provides performers with an auditory symbol of approval. In other cultures, if done in unison, applauding can be a symbol of the audience’s discontent with the performance. Gestures such as weaving and handshaking also communicate certain culture messages.

Although signals, signs, symbols, and gestures are very useful, they also have a major disadvantage in communication. They usually do not allow ideas to be shared without the sender being directly adjacent to the receiver. Without an exchange of ideas, interaction comes to a halt. As a result, means of communication intended to be used across long distances and extended periods must be based upon speech. To radio, television, and the telephone, one must add fax, paging systems, electronic mail, and the internet, and no one doubts but that there are more means of communication on the horizon.

The word themselves in paragraph 1 refers to ______.

A. information

B. intervals

C. words

D. signs

1

DH

Dương Hoàn Anh

10 tháng 7 2017

Đáp án : D

“signs also contain agreed upon meaning; that is, they convey information in and of themselves”-> “signs”= “they”-> “themselves”

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 11 to 20.Although speech is generally accepted as the most advanced form of communication, there are many ways of communicating without using words. In every known culture, signals, signs, symbols, and gestures are commonly utilized as instruments of communication. There is a great deal of agreement among communication scientists as to what each of these methods is and how...

LQ

Lê Quỳnh Anh

23 tháng 8 2018

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 11 to 20.

Although speech is generally accepted as the most advanced form of communication, there are many ways of communicating without using words. In every known culture, signals, signs, symbols, and gestures are commonly utilized as instruments of communication. There is a great deal of agreement among communication scientists as to what each of these methods is and how each differs from the others. For instance, the basic function of any signal is to impinge upon the environment in such a way that it attracts attention, as, for example, the dots and dashes that can be applied in a telegraph circuit. Coded to refer to speech, the potential for communication through these dots and dashes—short and long intervals as the circuit is broken—is very great. Less adaptable to the codification of words, signs also contain agreed upon meaning; that is, they convey information in and of themselves. Two examples are the hexagonal red sign that conveys the meaning of stop, and the red and white swirled pole outside a shop that communicates the meaning of barber.

Symbols are more difficult to describe than either signals or signs because of their intricate relationship with the receiver’s culture perceptions. In some cultures, applauding in a theater provides performers with an auditory symbol of approval. In other cultures, if done in unison, applauding can be a symbol of the audience’s discontent with the performance. Gestures such as weaving and handshaking also communicate certain culture messages.

Although signals, signs, symbols, and gestures are very useful, they also have a major disadvantage in communication. They usually do not allow ideas to be shared without the sender being directly adjacent to the receiver. Without an exchange of ideas, interaction comes to a halt. As a result, means of communication intended to be used across long distances and extended periods must be based upon speech. To radio, television, and the telephone, one must add fax, paging systems, electronic mail, and the internet, and no one doubts but that there are more means of communication on the horizon.

Why were the telephone, radio, and TV invented?

A. People wanted new forms of entertainment.

B. People were unable to understand signs, symbols, and signals.

C. People wanted to communicate across long distance.

D. People believed that signs, signals, and symbols were obsolete.

1

DH

Dương Hoàn Anh

23 tháng 8 2018

Đáp án : C

“means of communication intended to be used across long distances and extended periods” dịch: các phương tiện giao tiếp được dùng để truyền tải xa hơn và rộng hơn.

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 11 to 20.Although speech is generally accepted as the most advanced form of communication, there are many ways of communicating without using words. In every known culture, signals, signs, symbols, and gestures are commonly utilized as instruments of communication. There is a great deal of agreement among communication scientists as to what each of these methods is and how...

LQ

Lê Quỳnh Anh

11 tháng 6 2017

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 11 to 20.

Although speech is generally accepted as the most advanced form of communication, there are many ways of communicating without using words. In every known culture, signals, signs, symbols, and gestures are commonly utilized as instruments of communication. There is a great deal of agreement among communication scientists as to what each of these methods is and how each differs from the others. For instance, the basic function of any signal is to impinge upon the environment in such a way that it attracts attention, as, for example, the dots and dashes that can be applied in a telegraph circuit. Coded to refer to speech, the potential for communication through these dots and dashes—short and long intervals as the circuit is broken—is very great. Less adaptable to the codification of words, signs also contain agreed upon meaning; that is, they convey information in and of themselves. Two examples are the hexagonal red sign that conveys the meaning of stop, and the red and white swirled pole outside a shop that communicates the meaning of barber.

Symbols are more difficult to describe than either signals or signs because of their intricate relationship with the receiver’s culture perceptions. In some cultures, applauding in a theater provides performers with an auditory symbol of approval. In other cultures, if done in unison, applauding can be a symbol of the audience’s discontent with the performance. Gestures such as weaving and handshaking also communicate certain culture messages.

Although signals, signs, symbols, and gestures are very useful, they also have a major disadvantage in communication. They usually do not allow ideas to be shared without the sender being directly adjacent to the receiver. Without an exchange of ideas, interaction comes to a halt. As a result, means of communication intended to be used across long distances and extended periods must be based upon speech. To radio, television, and the telephone, one must add fax, paging systems, electronic mail, and the internet, and no one doubts but that there are more means of communication on the horizon.

What does the author say about speech?

A. It is the only true form of communication

B. It is necessary for communication to occur

C. It is the most advanced form of communication

D. It is dependent upon the advances made by inventors

1

DH

Dương Hoàn Anh

11 tháng 6 2017

Đáp án : C

Câu đầu đoạn 1:” Although speech is generally accepted as the most advanced form of communication,” -> đáp án C đúng, “ there are many ways of communicating without using words.” Có nhiều cách giao tiếp không dùng từ ngữ-> loại đáp án A,B. Đáp án D không được đề cập trong bài.