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22 tháng 6 2018

Cửa hàng có một số xe đạp và một số xe ba bánh. Mỗi chiếc xe đạp có 2 bánh xe. Mỗi xe ba bánh có 3 bánh xe. Tôi đếm được 31 bánh xe hoàn toàn. Có bao nhiêu xe đạp và xe ba bánh ở đó? Bạn có thể tìm thấy các câu trả lời có thể khác nhau không?

có thể tìm thấy các câu trả lời khác nhau : nếu có 31 bánh thì có thể lập tất cả 15 xe 2 bánh dư 1 bánh 

có thể lập đc 10 xe 3 bánh dư 1 bánh 

nếu gấp đôi lên 31 2 lần là ta có số xe là : 

25 xe các loại và dư 2 bánh 

và 2 bánh có thể lập thành 1 xe 2 bánh

vậy là có 26 xe khi ta gấp đôi số lượng 

tương tự 31 bánh ko chia hết cho 2 nên mượn 1 bánh thành 32 bánh 

32 : 2 = 16 bánh

ta lập: 16 bánh có thể lập đc 8 xe 2 bánh 

có thể lập đc 5 xe 3 bánh dư 1 bánh ta trả 1 bánh mượn là xong 

1 : 8 xe 2 bánh 5 xe 3 bánh 

ta thử bớt đi 1 bánh thì đc 30 bánh 

30 : 2 = 15 bánh 

15 bánh lập đc 7 xe 2 bánh thiếu 1 bánh lấy  vô thì đc 8 xe 2 bánh 

15 bánh lập đc 5 xe 3 bánh 

đó là hai cánh tìm số bánh lượt 1 

ta bậy dờ bớt 4 bánh nhân 4 số lần 

thì đc 27 bánh 

thì lập đc 9 xe 3 bánh 

4 bánh bớt có thể lập đc 2 xe 2 bánh 

vậy có hai kết quả là : 

1 : 8 xe 2 bánh , 5 xe 3 bánh 

2 : 9 xe 3 bánh , 2 xe 2 bánh 

22 tháng 6 2018

I think there are 11 bicycles and tricycles altogether.

2 bicycles and 9 tricycles

Xong rồi nhé

22 tháng 6 2018

mk ko hiểu cho lắm 

27 tháng 11 2019

Sorry nha!

Tìm lỗi sai và sửa lại (10 câu sai)

9 tháng 3 2017

The bicycle is a cheap and clean way to for travel. The first bicycle was made in about one hundred and fifty years old. At first, bicycle were much expensive. Only rich people could buy one. These early time bicycles looked very different from the ones we have them today. Later, when bicycles became cheaper many lots people bought one. people started riding bicycles to work and in their free time. Today, people use cars more than bicycles; cars are much more faster and you don't get wet when it start rains! But some people still prefer to cycle to work. They say there are too many cars in town centers and you can't able find anywhere to park!

1. For -> O

2. IN -> O

3. Old - > ago

4. Much -> O

5. Them -> O

6. Lots -> O

7. More -> O

8. Start -> O

10 tháng 3 2017

những từ này thừa phải k ạ

25 tháng 5 2018

dịch ra 

Chiếc xe đạp là một cách rẻ tiền và sạch sẽ để đi du lịch. Chiếc xe đạp đầu tiên được chế tạo cách đây khoảng một trăm năm mươi năm. Lúc đầu, xe đạp đắt tiền. Chỉ những người giàu mới có thể mua một cái. Những chiếc xe đạp đầu này trông rất khác với chiếc xe chúng ta có ngày nay. Sau đó, khi xe đạp trở nên rẻ hơn, nhiều người đã mua một chiếc. Mọi người bắt đầu đi xe đạp để làm việc và trong thời gian rảnh rỗi của họ.

Ngày nay, người ta sử dụng xe hơi nhiều hơn xe đạp; xe hơi nhanh hơn nhiều và bạn không bị ướt khi trời mưa! Nhưng một số người vẫn thích chu kỳ làm việc. Họ nói rằng có quá nhiều ô tô ở trung tâm thị trấn và bạn không thể tìm thấy bất cứ nơi nào để đỗ xe.

Fill in each numbered blank with one suitable word or phrase.Visitors to Viet Nam would like to learn the long history and rich culture. If you are keen on visiting a place without (1) ______ the environment at the same time, think about taking a bicycle tour and you will find you are rewarded with a very special ecotourism experience.There are many different cycle trips you can (2) ______ but a particular favourite one is the tour of the Mekong Delta. The Mekong Delta has a rich (3) ______  of...
Đọc tiếp

Fill in each numbered blank with one suitable word or phrase.

Visitors to Viet Nam would like to learn the long history and rich culture. If you are keen on visiting a place without (1) ______ the environment at the same time, think about taking a bicycle tour and you will find you are rewarded with a very special ecotourism experience.

There are many different cycle trips you can (2) ______ but a particular favourite one is the tour of the Mekong Delta. The Mekong Delta has a rich (3) ______  of culture and tradition and you can see this (4) ______ you slowly travel through this very distinct part of the world. Vietnamese and Khmer people live alongside Chinese communities, and they all rely on the (5) ______ plains and tributaries of the majestic Mekong River. It is here that many of the villagers use bicycles to (6) ______.

Being on a bicycle doesn't mean you will miss out on many of the extra activities and adventures. You can park your bike and enjoy a trip out to one of the floating villages (7) ______ people survive by fish farming or you can take an early boat to a floating market to purchase your food and supplies for the day.

There are plenty of tour operators who will (8) ______your journey and lodgings for you as well as carry your excess baggage, or you can (9) ______ of all this yourself and follow the road less travelled.

This mode of travel means you can really experience the very features of the Mekong Delta and Viet Nam and know that you are leaving behind only your tyre (10) ______.  

It is here that many of the villagers use bicycles to (6) ______.

A. get by

B. get ahead

C. get around

D. get along

1
9 tháng 11 2017

get by: xoay sở để sống

get ahead: tiến bộ

get around: di chuyển

get along: rời đi

=> It is here that many of the villagers use bicycles to get around.

Tạm dịch: Ở đây có nhiều người dân sử dụng xe đạp để đi lại.

Đáp án cần chọn là: C

Fill in each numbered blank with one suitable word or phrase.Visitors to Viet Nam would like to learn the long history and rich culture. If you are keen on visiting a place without (1) ______ the environment at the same time, think about taking a bicycle tour and you will find you are rewarded with a very special ecotourism experience.There are many different cycle trips you can (2) ______ but a particular favourite one is the tour of the Mekong Delta. The Mekong Delta has a rich (3) ______  of...
Đọc tiếp

Fill in each numbered blank with one suitable word or phrase.

Visitors to Viet Nam would like to learn the long history and rich culture. If you are keen on visiting a place without (1) ______ the environment at the same time, think about taking a bicycle tour and you will find you are rewarded with a very special ecotourism experience.

There are many different cycle trips you can (2) ______ but a particular favourite one is the tour of the Mekong Delta. The Mekong Delta has a rich (3) ______  of culture and tradition and you can see this (4) ______ you slowly travel through this very distinct part of the world. Vietnamese and Khmer people live alongside Chinese communities, and they all rely on the (5) ______ plains and tributaries of the majestic Mekong River. It is here that many of the villagers use bicycles to (6) ______.

Being on a bicycle doesn't mean you will miss out on many of the extra activities and adventures. You can park your bike and enjoy a trip out to one of the floating villages (7) ______ people survive by fish farming or you can take an early boat to a floating market to purchase your food and supplies for the day.

There are plenty of tour operators who will (8) ______your journey and lodgings for you as well as carry your excess baggage, or you can (9) ______ of all this yourself and follow the road less travelled.

This mode of travel means you can really experience the very features of the Mekong Delta and Viet Nam and know that you are leaving behind only your tyre (10) ______.   

The Mekong Delta has a rich (3) ______  of culture and tradition

A. change

B. various

Cdiverse

D. diversit

1
19 tháng 7 2017

change (n): sự thay đổi

various (adj): đa dạng

diverse (adj): đa dạng

diversity (n): sự đa dạng

=> The Mekong Delta has a rich diversity of culture and tradition

Tạm dịch: Đồng bằng sông Cửu Long có sự đa dạng phong phú về văn hóa và truyền thống

Đáp án cần chọn là: D

Fill in each numbered blank with one suitable word or phrase.Visitors to Viet Nam would like to learn the long history and rich culture. If you are keen on visiting a place without (1) ______ the environment at the same time, think about taking a bicycle tour and you will find you are rewarded with a very special ecotourism experience.There are many different cycle trips you can (2) ______ but a particular favourite one is the tour of the Mekong Delta. The Mekong Delta has a rich (3) ______  of...
Đọc tiếp

Fill in each numbered blank with one suitable word or phrase.

Visitors to Viet Nam would like to learn the long history and rich culture. If you are keen on visiting a place without (1) ______ the environment at the same time, think about taking a bicycle tour and you will find you are rewarded with a very special ecotourism experience.

There are many different cycle trips you can (2) ______ but a particular favourite one is the tour of the Mekong Delta. The Mekong Delta has a rich (3) ______  of culture and tradition and you can see this (4) ______ you slowly travel through this very distinct part of the world. Vietnamese and Khmer people live alongside Chinese communities, and they all rely on the (5) ______ plains and tributaries of the majestic Mekong River. It is here that many of the villagers use bicycles to (6) ______.

Being on a bicycle doesn't mean you will miss out on many of the extra activities and adventures. You can park your bike and enjoy a trip out to one of the floating villages (7) ______ people survive by fish farming or you can take an early boat to a floating market to purchase your food and supplies for the day.

There are plenty of tour operators who will (8) ______your journey and lodgings for you as well as carry your excess baggage, or you can (9) ______ of all this yourself and follow the road less travelled.

This mode of travel means you can really experience the very features of the Mekong Delta and Viet Nam and know that you are leaving behind only your tyre (10) ______.   

There are many different cycle trips you can (2) ______ but a particular favourite one is the tour of the Mekong Delta.

Aafford

B. take

C. go

D. bring

1
26 tháng 11 2017

afford (v): có đủ điều kiện (để làm gì)

take (v): tham gia

go (v): đi

bring (v): mang theo

take a trip = go on a trip: tham gia hành trình

=> There are many different cycle trips you can take but a particular favourite one is the tour of the Mekong Delta.

Tạm dịch: Có nhiều chuyến đi xe đạp khác nhau mà bạn có thể tham gia nhưng một chuyến đi đặc biệt yêu thích là chuyến tham quan đồng bằng sông Cửu Long.

Đáp án cần chọn là: B

I.read the passage and then fill in each gap with a suitable word chosen from the box . and , what , day , has , next/close , where , get , the , which ,from ,in , here , for , more The country is______(1) beautiful than a town and more pleasant to live in . any people think so and go to the country ________(2) the summer holidays though they can't live _______(3) all the year round . Some have a cottage built in a village _______(4) that they can go there whenever they can find the time...
Đọc tiếp

I.read the passage and then fill in each gap with a suitable word chosen from the box .

and , what , day , has , next/close , where , get , the , which ,from ,in , here , for , more

The country is______(1) beautiful than a town and more pleasant to live in . any people think so and go to the country ________(2) the summer holidays though they can't live _______(3) all the year round . Some have a cottage built in a village _______(4) that they can go there whenever they can find the time .

Englosh villages are not all alike , but _______(5) some ways they are not very different _________(6) each other . Almost every village has a church , the round or square tower of______(7) can be seen many miles around . Surrounding _________(8) church is the churchyard _________(9) peaple are buried .

The village green_______(10) a wide streatch of grass , and houses or cottages are ___________(11) to it . Country file is now fairly comfotable and many villages________(12) water brought through pipes each _______(13)

Most villages are so close to some small towns _______(14) peaple can go there to buy _______(15) they can't find in the village shop .

II. Reorder the letters so that they from the meaningful words , beased on the definitions beside .

1. IMAEZ - corn

2. DEEF - give food to eat

3. CROGREY ROSTE - where people buy food and small things

4. TRAP-IMET - shorter or less than standard time

5.CLETOCL - bring things together .

help me ><

1
10 tháng 10 2017

I.read the passage and then fill in each gap with a suitable word chosen from the box .

and , what , day , has , next/close , where , get , the , which ,from ,in , here , for , more

The country is__more____(1) beautiful than a town and more pleasant to live in . any people think so and go to the country _____for___(2) the summer holidays though they can't live ___here____(3) all the year round . Some have a cottage built in a village ____so___(4) that they can go there whenever they can find the time .

Englosh villages are not all alike , but ___in____(5) some ways they are not very different _____from____(6) each other . Almost every village has a church , the round or square tower of__which____(7) can be seen many miles around . Surrounding ____the_____(8) church is the churchyard _____where____(9) peaple are buried .

The village green___is____(10) a wide streatch of grass , and houses or cottages are ______next_____(11) to it . Country file is now fairly comfotable and many villages_____have___(12) water brought through pipes each ____day___(13)

Most villages are so close to some small towns ____that___(14) peaple can go there to buy ___what____(15) they can't find in the village shop .

II. Reorder the letters so that they from the meaningful words , beased on the definitions beside .

1. IMAEZ - corn MAIZE

2. DEEF - give food to eat FEED

3. CROGREY ROSTE - where people buy food and small things GROCERY STORE

4. TRAP-IMET - shorter or less than standard time PART-TIME

5.CLETOCL - bring things together . COLLECT