Bài viết 1

In the future, I will live in a hi-tech house. It might be by the sea and it's will be surrounded by the blue sea. There are twenty rooms in my house. My house will has a big garage so that I can store my super cars. My future house will have wind and solar energy. I will use hi-tech and automatic machines such as a smart clock, modern fridge, and so on. There is a super smart TV in my house. I might surf the internet, watch my favourite TV programme from space or contact friends on other planets on this TV. I might also join online classes on TV and not have to go to school. I love my house very much.

Bài viết 2

I'd like to have a hi-tech house by the sea because I want to see the beach. I love beautiful scenes at the beach and enjoy the atmosphere there. There will be a lot of trees and flowers surrounding my house. In my house, there will be 5 rooms: two bedrooms, a living room, a kitchen, and a bathroom. The appliances in my house will be modern. I will have a smart TV to surf the Internet and watch interesting programmes, a smart car to move around, a hi-tech robot to help me do my housework and a smartphone to phone and exchange emails with my friends.

Bài viết 3

My house in the future will be a candy house. It is a big house with syrup and fruit juice covering my house. In front of the house there will be a robot made of cakes, and welcome me very intimately when I return home. The house is decorated with 2 big candy trees. On top of the house there are chimneys and my house is surrounded by big trees. In my house there are 4 rooms: 1 living room, 2 bedrooms and a kitchen. My robots will do all the housework to help me. In the living room, there will be a table and many sofas. It will have a hi-tech TV, I can watch many different programmes. In the kitchen, there will be a stove, a fridge, a microwave. In each bedroom, there will be a king-size bed, an air-conditioner, some pillows, some blankets. I love my future house and I wish it will come true someday.

khi 2 kim trùng nhau thì lúc đó là 12 h

vậy cần số giờ để 2 kim trùng nhau là

12-4=8 giờ

                d/s:8h

dung do k mk nha

=>(\(\frac{7}{4}+\frac{21}{20}+\frac{7}{10}+\frac{1}{2}\))-x=-2015

=>(1,75+1,05+0,7+0,5)-x=-2015

=>4-x=-2015

=>x=4-(-2015)

=>x=2019

M=x²-2.x.1/2+(1/2)²-(1/2)² +y²-2.y.3+3²-3²+10

M=(x-1/2)²-1/4+(y-3)²-9+10

M=(x-1/2)² +(y-3)²+3/4 luon >=3/4

Vậy: GTNN cua M la 3/4 khi x=1/2 và y=3

1

Tất cả các con như thế đều bằng 1

Tổng vận tốc là :

                53 + 37= 90 ( km/h)

2 xe đi để gặp nhau là :

                 270 : 90 = 3 ( giờ )

b) Chỗ gặp nhau cách B là :
                       3 x3 7 = 111 ( km)

Tổng số phần bằng nhau là:

3 + 5 = 8 (phần)

Số lít dầu ở thùng 1 là:

(96 : 8) x 3 + 2 = 38 (l)

Số lít dầu ở thùng 2 là:

96 - 38 = 58 (l)

Đáp số: Thùng 1: 38l

               Thùng 2: 58l

Ai k mk mk k lại gấp đôi!