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3 tháng 9 2021

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3 tháng 9 2021

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19 tháng 3 2017

quang duong: 54

v xuoi: 18 km/gio

v nguoc: 12 km/gio

1. How much is a bar of soap?

=> It's 5,000 dong.

2. How much is a bottle of cooking oil?

=> It's 16,000 dong.

3. How much are four glasses?

=> They're 12,000 dong.

4. How much is a white shirt?

=> It's 40,000 dong.

5. How much is an ice cream?

=> It's 2,500 dong.

6. How much are ten kilos of rice?

=> They're 50,000 dong.

7. How much is a bowl of noodles?

=> It's 5,000 dong.

8. How much are two kilos of potatoes?

=> They're 6,000 dong.

7 tháng 4 2016

trong câu hỏi tương tự có đó bn

7 tháng 4 2016

Chịu , ai có cùng ý kiến thì k cho minh nha.

5 tháng 7 2017

minh an nham la toan lop 10 nhung thuc ra no la toan on tap lop 6 do cac ban ,sory ....batngo

6 tháng 4 2016

3h30phút=3,5h

v x/d=84:3=28km/h

v n/d:84:3,5=24km/h

v d/n:(28-24):2=2km/h

22 tháng 2 2017

2. Two cans of soda are sixteen thousand dong.

=> How much are two cans of soda?

3. It's three thousand five hundred dong.

=> How much is it?

4. A sandwich and an apple are on thousand eight hundred dong.

=> How much are a sandwich and an apple?

5. A bowl of noodles is three thousand dong.

=> How much is a bowl of noodles?

6. They're twenty-five thousand dong

=> How much are they?.

7. A plate of fried rice is two thousand five hundred dong.

=> how much is a plate of fried rice?

8. These oranges are four thousand two hundred dong

how much are these oranges?

22 tháng 4 2019

2. Two cans of soda are sixteen thousand dong.

=> How much are two cans of soda?

3. It's three thousand five hundred dong.

=> How much is it?

4. A sandwich and an apple are on thousand eight hundred dong.

=> How much are a sandwich and an apple?

5. A bowl of noodles is three thousand dong.

=> How much is a bowl of noodles?

6. They're twenty-five thousand dong

=> How much are they?.

7. A plate of fried rice is two thousand five hundred dong.

=> How much is a plate of fried rice?

8. These oranges are four thousand two hundred dong

=>How much are these oranges?

21 tháng 7 2017

Đặt câu hỏi và viết câu trả lời về giá tiền

Ex : this book // 20000 dong

How much is this book ? - It's twenty thousand dong

These books // 28000 dong

How much are these books ? - They're twenty-eight thousand dong

1. These envelopes// 5000 dong

=>How much are these envelopes?

they are 5000 dong

2. The picture // 64000 dong

=>How much is the picture?

It is 64k dong

3. This postcard // 12000 dong

=>How much is this postcard?

It's 12k dong

4. A local stamo and an envelope // 1500 dong

=>How much are A local stamp and an envelope?

They are 1,5k

5. Those sandwiches // 8500 dong

=>How much are those sanwiches?

They are 8500 dong

6. The phone card // 50000 dong

=.How much is the phone card?

it is 50 k dong

7. A pad of paper // 15000 dong

=>How much is a pad of paper?

It 's 15000 dong

8. Three boxes of chocolates // 75000 dong

=>How mcuh are three boxes of chocolates?

They are 75000 dong

21 tháng 7 2017

Đặt câu hỏi và viết câu trả lời về giá tiền

Ex : this book // 20000 dong

How much is this book ? - It's twenty thousand dong

These books // 28000 dong

How much are these books ? - They're twenty-eight thousand dong

1. These envelopes// 5000 dong

How much are These envelopes? they're 5000 dong

2. The picture // 64000 dong

How much is the picture? it's 64000 dong

3. This postcard // 12000 dong

How much is this postcard? it's 12000 dong

4. A local stamo and an envelope // 1500 dong

How much are A local stamo and an envelope? they're 1500 dong

5. Those sandwiches // 8500 dong

How much are those sandwiches? they're 8500 dong

6. The phone card // 50000 dong

How much is the phone card? it's 50000 dong

7. A pad of paper // 15000 dong

How much is A pad of paper? it's 15000 dong

8. Three boxes of chocolates // 75000 dong

How much are three boxes of chocolates ? they're 75000 dong

4 tháng 6 2018

Gọi vận tốc thực(vận tốc riêng) là a (km/h) (a >0)
=> vận tốc cano xuôi dòng là a + 3 (km/h)
      "                   ngược dòng là: a - 3 (km/h)
Đổi 1h20' = 4/3 (h)
Theo bài ra ta có pt:
     4/3(a + 3) = 2(a - 3)
=> giải pt ra được a = ( bn tự tính nha )