BTVN
Viết 3 dong chữ A
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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.
minh an nham la toan lop 10 nhung thuc ra no la toan on tap lop 6 do cac ban ,sory ....
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
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?
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?
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
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
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 )
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