it takes 4 men 6 hours to repair a car . How long will it take 6 men to do the same job if they work at the same rate ?

YC

Yen Chibi

30 tháng 10 2016 - olm

#Toán lớp 4

4

PT

Phan Thanh Tịnh

30 tháng 10 2016

1 men repairs a car for : 6 x 4 = 24 (hours)

6 men repair a car for : 24 : 6 = 4 (hours)

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TM

Trần Minh Quân

30 tháng 10 2016

Mất 4 người đàn ông trong 6 giờ để sửa một chiếc xe. Hỏi mất bao nhiêu thời gian nếu 6 người đàn ông cùng sửa 1 chiếc xe mỗi người kiểu như là bằng nhau đấy. TỰ giải nha, bài này dễn lắm

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DL

Đặng Lan Phương

14 tháng 9 2016 - olm

It takes Tom 4 hours to built a fence. If he hires Jack to help him, together they can do the job in just 3 hours. If jack built the same fence alone, how long would it take him?

#Toán lớp 9

6

CH

Cô Hoàng Huyền

Admin VIP

15 tháng 9 2016

In a hour, Tom and Jack can do: \(\frac{1}{3}\) (the job)

In a hour, Tom can do: \(\frac{1}{4}\) (the job)

So in a hour, Jack can do: \(\frac{1}{3}-\frac{1}{4}=\frac{1}{12}\) (the job)

Thus, if Jack built the same fence alone, it would take 12 hours.

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LQ

Lương Quỳnh Trân

14 tháng 9 2016

làm sao để hỏi câu hỏi vậy giúp mình đi nhan

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MC

Mina Cadie

2 tháng 9 2015 - olm

If 10 worker take 8 hours to repair a car then 4 worker will take ................... hours to repair the same car.

#Toán lớp 8

1

DD

Đặng Đỗ Bá Minh

2 tháng 9 2015

If 10 worker take 8 hours to repair a car then 4 worker will take ...20...hours to repair the same car.

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NM

Ngọc My

1 tháng 3 2022

Đọc tiếp

Complete the second sentence so that it has the same meaning as the first.

21. It’s a long time since men last went to the Moon.

Men ………………………………………………………………………………………………………………………

22. “How long does it take to get to Mars?” Jim asked his father.

Jim asked …………………………………………………………………………………………………………………

23. I had learnt about Pham Tuan before reading articles about him.

Before I ……………………………………………………………………………………………………………………

24. The earthquake has caused the closure of many roads in the area.

As a result ………………………………………………………………………………………………………………

25. Don’t press that button on the keyboard, or you’ll lose what you’ve written.

If ……………………………………………………………………………………………………………………………

26. Most parents want their children to study a useful subject leading to a good job.

Most parents would rather ……………………………………………………………………………………………

27. Martin can’t apply for NASA astronaut training because he is not a U.S. citizen.

If ……………………………………………………………………………………………………………………………

28. “I went to the National Air and Space Museum with my friends yesterday,” he said.

He said ……………………………………………………………………………………………………………………

29. They have sent around 8,378 satellites to space since the launch of Sputnik 1 in 1957.

Around 8,378 satellites …………………………………………………………………………………………………

30. Do you know the reason? Many people around the world learn English for this reason.

Do you know ……………………………………………………………………………………………………………

#Tiếng anh lớp 9

0

YN

Yến Nhi

1 tháng 3 2022

Đọc tiếp

Complete the second sentence so that it has the same meaning as the first.

21. It’s a long time since men last went to the Moon.

Men ………………………………………………………………………………………………………………………

22. “How long does it take to get to Mars?” Jim asked his father.

Jim asked …………………………………………………………………………………………………………………

23. I had learnt about Pham Tuan before reading articles about him.

Before I ……………………………………………………………………………………………………………………

24. The earthquake has caused the closure of many roads in the area.

As a result ………………………………………………………………………………………………………………

25. Don’t press that button on the keyboard, or you’ll lose what you’ve written.

If ……………………………………………………………………………………………………………………………

26. Most parents want their children to study a useful subject leading to a good job.

Most parents would rather ……………………………………………………………………………………………

27. Martin can’t apply for NASA astronaut training because he is not a U.S. citizen.

If ……………………………………………………………………………………………………………………………

28. “I went to the National Air and Space Museum with my friends yesterday,” he said.

He said ……………………………………………………………………………………………………………………

29. They have sent around 8,378 satellites to space since the launch of Sputnik 1 in 1957.

Around 8,378 satellites …………………………………………………………………………………………………

30. Do you know the reason? Many people around the world learn English for this reason.

Do you know ……………………………………………………………………………………………………………

#Tiếng anh lớp 9

0

NM

Ngọc My

1 tháng 3 2022

Đọc tiếp

Complete the second sentence so that it has the same meaning as the first.
1. It’s a long time since men last went to the Moon.
Men ………………………………………………………………………………………………………………………
2. “How long does it take to get to Mars?” Jim asked his father.
Jim asked …………………………………………………………………………………………………………………
3. I had learnt about Pham Tuan before reading articles about him.
Before I ……………………………………………………………………………………………………………………
4. The earthquake has caused the closure of many roads in the area.
As a result ………………………………………………………………………………………………………………
5. Don’t press that button on the keyboard, or you’ll lose what you’ve written.
If ……………………………………………………………………………………………………………………………
6. Most parents want their children to study a useful subject leading to a good job.
Most parents would rather ……………………………………………………………………………………………
7. Martin can’t apply for NASA astronaut training because he is not a U.S. citizen.
If ……………………………………………………………………………………………………………………………
8. “I went to the National Air and Space Museum with my friends yesterday,” he said.
He said ……………………………………………………………………………………………………………………
9. They have sent around 8,378 satellites to space since the launch of Sputnik 1 in 1957.
Around 8,378 satellites …………………………………………………………………………………………………
10. Do you know the reason? Many people around the world learn English for this reason.
Do you know ……………………………………………………………………………………………………………

#Tiếng anh lớp 9

0

QP

Quế Phan Hà An

3 tháng 5 2021 - olm

Bạn nào giỏi cả 2 môn anh và toán vào trl giúp mk câu này vs.

1, It takes Hanh two hours to clean the house. It takes Phuong three hours to clean the same house.

How long will it take them to clean the house together ?

2, Tính P = 1/1 + 2 + 1/1 + 2 + 3 + 1/1 + 2 + 3 + 4 +........+ 1/1 + 2 + 3 + ....... + 2021.

#Toán lớp 6

12

DN

Đoàn Ngọc Minh

3 tháng 5 2021

thì hai đứa dọn trả nhanh hơn 1 đứa

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DN

Đoàn Ngọc Minh

3 tháng 5 2021

nếu sai cho xl

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CV

Cherry Vương

10 tháng 9 2023

1. rewrite the following sentences so that they mean the same as the original ones

1. If you don't wear sun hat, you will get sunburnt. (or)

2. It takes him 2 hours a day to play basketball.

He spends__________________

3. It is very healthy to eat fruit and vegetable every day.

Eating__________

cứu em

#Tiếng anh lớp 6

1

T

Toru

10 tháng 9 2023

1. Wear a hat or you will get sunburnt.

2. He spends 2 hours a day playing basketball.

3. Eating fruits and vegetable every day are very healthy.

#Toru

Đúng(1)

DM

Dương Minh

2 tháng 1 2020

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.HousehusbandsDear Editor,I read with interest the article on American families. In general I agree with it, but there are some important things it left out. It didn't tell the reader much about the life of a househusband. It's not an easy life. I know, because I'm now a househusband myself. A househusband has to change many of his ideas and his ways.First of...

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.

Househusbands

Dear Editor,

I read with interest the article on American families. In general I agree with it, but there are some important things it left out. It didn't tell the reader much about the life of a househusband. It's not an easy life. I know, because I'm now a househusband myself. A househusband has to change many of his ideas and his ways.

First of all, he has to change the way he thinks about time. Before I was a househusband, I worked full-time for the New York Times. I was a reporter, and time was always important. We had to finish our article quickly and give them to the editor. Everyone was always in a hurry. This is the way, many other men work, too. Businessmen, lawyers, bankers, and doctors all have to work quickly.

At home it's different. The househusband cannot be in a hurry all the time. If you rush around, you will make everyone unhappy! The children will be unhappy because they don't understand. For them, time is not important. Your wife will be unhappy because the children are unhappy. You will be unhappy, too, because they are all unhappy. So you have to learn to slow down. That is the first and most important rule for a househusband.

There is something else the househusband must learn. You must learn to show how you feel about things. At work, men usually do not talk about feelings. If they do, people think they are strange. So, many men are not used to telling anyone about their feelings. They do not know how to talk about their anger, worries, or love. But children need to know how you feel. They need to know how much you love them. If you are angry, they need to know why. Your wife also needs to know about your feelings. If you do not say anything, your family may get the wrong idea. Then there may be serious problems.

People talk a lot about househusbands these days. Usually they talk about men doing the housework, the cooking, cleaning, and shopping. But in my opinion, these are the easiest things to learn. It was much harder for me to change the way I think and the way I act with my family. I think, other men will also find this harder, but, like me, will find it necessary if they want to have a happy family!

Ted Diamond

Family problems can happen if _________ .

A. men don't talk enough with their families.

B. people talk about househusbands.

C. men get wrong ideas.

D. men talk too much with their families.

#Mẫu giáo

1

NH

Nguyen Hoang Hai

2 tháng 1 2020

A

Các mâu thuẫn gia đình có thể xảy ra nếu:

A. đàn ông không trò chuyện đủ nhiều với gia đình của họ.

B. mọi người nói về chuyện đàn ông là nội trợ.

C. đàn ông hiểu sai ý.

D. đàn ông nói quá nhiều với gia đình họ.

Dẫn chứng: “If you do not say anything, your family may get the wrong idea. Then there may be serious problems.”

Tạm dịch: Nếu bạn không nói gì cả, gia đình bạn sẽ hiểu sai ý của bạn. Và sau đó có thể có những vấn đề nghiêm trọng.

Đúng(0)

LQ

Lê Quỳnh Anh

6 tháng 2 2019

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.HousehusbandsDear Editor,I read with interest the article on American families. In general I agree with it, but there are some important things it left out. It didn't tell the reader much about the life of a househusband. It's not an easy life. I know, because I'm now a househusband myself. A househusband has to change many of his ideas and his ways.First of...

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.

Househusbands

Dear Editor,

I read with interest the article on American families. In general I agree with it, but there are some important things it left out. It didn't tell the reader much about the life of a househusband. It's not an easy life. I know, because I'm now a househusband myself. A househusband has to change many of his ideas and his ways.

First of all, he has to change the way he thinks about time. Before I was a househusband, I worked full-time for the New York Times. I was a reporter, and time was always important. We had to finish our article quickly and give them to the editor. Everyone was always in a hurry. This is the way, many other men work, too. Businessmen, lawyers, bankers, and doctors all have to work quickly.

At home it's different. The househusband cannot be in a hurry all the time. If you rush around, you will make everyone unhappy! The children will be unhappy because they don't understand. For them, time is not important. Your wife will be unhappy because the children are unhappy. You will be unhappy, too, because they are all unhappy. So you have to learn to slow down. That is the first and most important rule for a househusband.

There is something else the househusband must learn. You must learn to show how you feel about things. At work, men usually do not talk about feelings. If they do, people think they are strange. So, many men are not used to telling anyone about their feelings. They do not know how to talk about their anger, worries, or love. But children need to know how you feel. They need to know how much you love them. If you are angry, they need to know why. Your wife also needs to know about your feelings. If you do not say anything, your family may get the wrong idea. Then there may be serious problems.

People talk a lot about househusbands these days. Usually they talk about men doing the housework, the cooking, cleaning, and shopping. But in my opinion, these are the easiest things to learn. It was much harder for me to change the way I think and the way I act with my family. I think, other men will also find this harder, but, like me, will find it necessary if they want to have a happy family!

Ted Diamond

Family problems can happen if _________ .

A. men don't talk enough with their families.

B. people talk about househusbands.

C. men get wrong ideas.

D. men talk too much with their families.

#Mẫu giáo

1

DH

Dương Hoàn Anh

6 tháng 2 2019

Chọn A

Các mâu thuẫn gia đình có thể xảy ra nếu:

A. đàn ông không trò chuyện đủ nhiều với gia đình của họ.

B. mọi người nói về chuyện đàn ông là nội trợ.

C. đàn ông hiểu sai ý.

D. đàn ông nói quá nhiều với gia đình họ.

Dẫn chứng: “If you do not say anything, your family may get the wrong idea. Then there may be serious problems.”

Tạm dịch: Nếu bạn không nói gì cả, gia đình bạn sẽ hiểu sai ý của bạn. Và sau đó có thể có những vấn đề nghiêm trọng.

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