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16 tháng 3 2016

Ana's current age (a) is what maria's age was x years ago 
a = 24 - x 
x years ago, Maria's age (24 - x) was twice Ana's age (a - x) 
2(a - x) = 24 - x 

put 24 - x in for a in the second equation: 
2(24 - x - x) = 24 - x 
48 - 4x = 24 - x 
24 = 3x 
8 = x 

Plug this back into a = 24 - x to find a, Ana's current age: 

a = 24 - 8 

Ana is currently 16. 

16 tháng 3 2016

da ko biet giai con ghi bang Tieng anh!

Bài 1: Read. Then answer the questions below.(2p) The ancient town of Hoi An lies on the Thu Non river, 30 km south of Da Hang. It was formerly a major trading center in Southeast Asia between the 16th and 17th centuries. Hoi an is famous for it’s old temples, pagodas, small tile – roofed houses and narrow streets. All the houses were made of wood and their pillar we’re carved with ornamental design. All visitors to Hoi an are commended a visit to the Assembly Hall of Cantonese Chinese...
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Bài 1: Read. Then answer the questions below.(2p)

The ancient town of Hoi An lies on the Thu Non river, 30 km south of Da Hang. It was formerly a major trading center in Southeast Asia between the 16th and 17th centuries. Hoi an is famous for it’s old temples, pagodas, small tile – roofed houses and narrow streets. All the houses were made of wood and their pillar we’re carved with ornamental design.

All visitors to Hoi an are commended a visit to the Assembly Hall of Cantonese Chinese Congregation. This house was built in 1855 and still keeps many precious objects that belonged to the Chinese community of Hoi an. Another attractive address to tourists is Tan Ky house, which was conducted nearly two centuries ago as house of a Vietnamese merchant. The house now looks almost exactly as it did in the early 19th century

In recent years, Hoi An has become a popular tourists destination in Vietnam. In 1999, it was certified by UNESCO as a World Culture Heritage Site.

1. Where is the ancient town of Hoi An situated ?

->________________________________________________________

2. What is Hoi An famous for?

->________________________________________________________

3. When was the Assembly Hall of Cantonese Chinese Congregation built ?

->________________________________________________________

4. The word ” famous” can be refered by _______

A. beautiful B. well-known C. unknown D. wonderful

5. Hoi An was declared by UNESCO as a World Cultural Heritage Site in the ____

the century.

A.18 B.19 C.20 D. 21

1
5 tháng 4 2020

Bài 1: Read. Then answer the questions below.(2p)

The ancient town of Hoi An lies on the Thu Non river, 30 km south of Da Hang. It was formerly a major trading center in Southeast Asia between the 16th and 17th centuries. Hoi an is famous for it’s old temples, pagodas, small tile – roofed houses and narrow streets. All the houses were made of wood and their pillar we’re carved with ornamental design.

All visitors to Hoi an are commended a visit to the Assembly Hall of Cantonese Chinese Congregation. This house was built in 1855 and still keeps many precious objects that belonged to the Chinese community of Hoi an. Another attractive address to tourists is Tan Ky house, which was conducted nearly two centuries ago as house of a Vietnamese merchant. The house now looks almost exactly as it did in the early 19th century

In recent years, Hoi An has become a popular tourists destination in Vietnam. In 1999, it was certified by UNESCO as a World Culture Heritage Site.

1. Where is the ancient town of Hoi An situated ?

->The ancient town of Hoi An lies on the Thu Non river, 30 km south of Da Hang.

2. What is Hoi An famous for?

->Hoi an is famous for it’s old temples, pagodas, small tile – roofed houses and narrow streets.

3. When was the Assembly Hall of Cantonese Chinese Congregation built ?

->This house was built in 1855 and still keeps many precious objects that belonged to the Chinese community of Hoi an.

4. The word ” famous” can be refered by _______

A. beautiful B. well-known C. unknown D. wonderful

5. Hoi An was declared by UNESCO as a World Cultural Heritage Site in the ____

the century.

A.18 B.19 C.20 D. 21

5 tháng 4 2016

1) My house isn't smaller than hers.

2)Grass is eaten by cows and buffaloes.

5 tháng 4 2016

1. My house isn't smaller than hers.

2. Grass is eatten by cows and buffaloes.

3. My mother and father are the same age.

In a park in a small town in central England, John Pickering cuts the grass and waters the flowers. But all last week he was in Tokyo and millions of Japanese people watched the thirty-five-year-old gardener on television because John is the number one singer in Japan at the moment. John visited Japan a few months ago to sing in dance clubs in Osaka and Nagoya. A discjockey heard his songs and played them on his radio show. Hundreds of young people phoned the radio and asked the discjockey to...
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In a park in a small town in central England, John Pickering cuts the grass and waters the flowers. But all last week he was in Tokyo and millions of Japanese people watched the thirty-five-year-old gardener on television because John is the number one singer in Japan at the moment. John visited Japan a few months ago to sing in dance clubs in Osaka and Nagoya. A discjockey heard his songs and played them on his radio show. Hundreds of young people phoned the radio and asked the discjockey to play the songs once more.
            John, who uses the name Jon Otis when he sings in Japan, is not going to stop working in the park in England. He does not know yet how much he will earn from his music. T must keep my job in the park,’ he says. T still have to pay my bills!’ The other gardeners do not know that he is famous in Japan. They’ve never even heard him sing.
            John’s wife, Denise, a hospital worker, says, ‘This will not change the way we live. I only know John Pickering, not Jon Otis!’

20.John Pickering usually works in England
A Right B Wrong C Doesn’t say
21 A few days ago, John was on television in Japan.
A Right B Wrong C Doesn’t say
22 John’s first show in Japan was on the radio.
A Right B Wrong C Doesn't say
23 John hopes to become famous in England one day.
A Right B Wrong C Doesn’t say
24 John Pickering and Jon Otis are the same person.
A Right B Wrong C Doesn't say
25 John will still work in the park because he needs the money.
A Right B Wrong C Doesn’t say
26 John’s colleagues think his songs are very good.
A Right B Wrong C Doesn't say
27 John’s wife would like him to stop singing.
A Right B Wrong C Doesn’t say 

0
22 tháng 1 2018

Tell the numbers to find are \(\overline{ab}\)

\(\Rightarrow\left\{{}\begin{matrix}2b-a=1\\\overline{ab}-\overline{ba}=27\end{matrix}\right.\)

=> 10a + b - 10b - a = 27

=> 9a - 9b = 27

=> a-b = 3

=> a = b + 3

=> 2b - 1 = b+3

=> 2b - b = 3 + 1

=> b = 4

=> a = \(2\cdot4-1=7\)

So he number to find is 74

22 tháng 1 2018

Giup mik nhe Luân Đào

Rewrite the sentences without changing their meanings. 1.Who cleaned this car this afternoon?(cleaned) _________________________________________________ 2.They said:"We can't talk to her if she doesen't apologise to us for her bad behaviour." ___________________________________________________ 3.He has a number of relatives living nearly,but he never visits them(even though) ______________________________________________________ 4.Be careful or you'll fall of your...
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Rewrite the sentences without changing their meanings.

1.Who cleaned this car this afternoon?(cleaned)

_________________________________________________

2.They said:"We can't talk to her if she doesen't apologise to us for her bad behaviour."

___________________________________________________

3.He has a number of relatives living nearly,but he never visits them(even though)

______________________________________________________

4.Be careful or you'll fall of your bike.

____________________________________________________

5.Our teacher is always a careful driver.(drives)

__________________________________________

6.Mr Tam went to work by car some years ago,but now he cycles.(used)

_________________________________________

7.Road users should obey traffic rules strictly.(obeyed)

___________________________________________________

8.My mother washed clothes by hand in the past,but she no longer does it now.(used)

_________________________________________________________

9.Because Mr Tam was seriously ill last night,he didn't join our party.

_____________________________________________________

10.Despite the rainy wheather tonight,we dicided to go out together.

Although________________________________________

11.They don't have much time.They can't have lunch with us.(enough)

_________________________________________________

12.She practise speaking English everyday.She wants to speak it fluently.(in order to)

_______________________________________________________

13.It is reported that two people were seriously injured in the accident.

Two people_____________________________________

14.It is said that three men were arrested after the explosion.

Three man_________________________________________________

15.They are the best players in this game.

No player____________________________

16.They think that the old man died on the way to the hospital.

It_______________________________

The old man__________________________

17.What a pity you can't take part in our tour.

I wish________________________________

18.The air isn't pure,so were aren't healthy.

If______________________________--

19.We spoke to the man.He was very humorous.(who)

The man_________________________________________

20.His parents are both retired.They now live in Japan.

His parents____________________________

21.They asked me some different questions at the interview.

I___________________________-

0
9 tháng 11 2016

toán hại não , quá hại não!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...???

9 tháng 11 2016

2) x = 3