Gọi số tự nhiên cần tìm là a.

Theo bài ra ta có:\(\frac{54}{83-a}\)=\(\frac{3}{4}\).Âp dụng tính chất của tỉ lệ thức ta có:54.4=(83-a).3

\(\Leftrightarrow\)216=249-3a\(\Rightarrow\)a=\(\frac{249-216}{3}\)=11

vậy số đó là 11

chúc bạn vui

bn ghi mik thấy khó hỉu 

mún giúp bn nhưng ko hỉu 

YÊU CẦU LÀ

CIRCLE THE CORRECT ITEM

1, A

2, a

3, a

4, a

5, mk nghĩ phải là "have"

6, b

7, a

1) a

2) a

3) a

4) a

5) b

6) a

7) a

Choose one out

1.Mum       2.Dad          3.Me         4.Brother

1.Draw       2.Read        3.Mum      4.Learn

1.How       2. Why         3.What     4.Pen

1. 20         2 . 40          3. 50         4. 80

1. Maths      2. English     3.One    4.Vietnamese

3.Me

3.learn

4.Pen

3.50

3.one

1. Listening. Listening is a receptive language skillwhich learners usually find the most difficult. ...
2. Speaking. Language is a tool for communication. ...
3. Reading. Reading is a learning skill. ...
4. Writing.

math ?

In the morning I get up at 6 o'clock.Every day,I do morning exercise with my father.Then I wash my face and brush my teeth.I have breakfast at half past six.After that I dressed my clothers.And I go to school by bike. 
In my classes I have many classes.I study many subects such as English,Math,Biolgy,Literature.Vietnamse... I English best.Because it is very interesting. 
In the afternoon I play many games.So I badminton with my brother.I always play it in the stadium 
In the evening I do my home work and go to bed at a quater past nine 

là short

TRÁI NGHĨA VS LONG  LÀ  SHORT

Bài làm

Từ cần dịch:

Handsome 

Dịch từ:

Đẹp trai

# Chúc bạn học tốt #

đẹp trai

thì gì vậy bạn

1.What does he do in his free time?

2.He often reads books.

3.What book is he reading now?

4.He is reading Doraemon. 

Chúc bạn học tốt

Học tốt

.....

Tiểu Tuyết Băng Giá

In my summer holiday, I did not do something special and did not go somewhere special except Chamonix and Venice. Most of my holiday was showing friends of my parents and my grandparents the most important and the most beautiful places of Geneva and its surroundings.

I started the summer holiday before everyone (6 days before). That was because of my grandparents. Well, it first started off when my grand parents came. We were going by car where my grandmother wouldn't walk and I was walking with my grandfather. Because my grandfather s walking and my grandmother doesn't. Well they stayed for 1 month and went back to Turkey. The next visitors were my mother's schoolmates (can you believe it!!). They stayed one month as well. We kind of went to same places, when they were gone that was the fun. We went to Chamonix and Venice.

The best thing there was the Jacuzzi and the pool. In Chamonix, the mountains haven. The highest there was Mont-Blanc and Auguille du Midi. We climbed with a cable car; it was totally amazing and extremely cold. This point was 3842 meters high. And, of course, I should not forget Venice, it was also a haven but I didn't see much because we had small amount of time. The most amazing thing was the square of San Marco Polo and then the gondolas.

The thing I really d about my holiday was getting a brand new VW Passat and seeing my grandparents (first time in two years).