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24 tháng 1

Quãng đường ô tô đi 6 giờ là:

41x6=246( km)

3 giờ đầu xe ô tô đi số ki lô mét là:

42x3= 126(km)

giờ thứ tư và thứ năm xe ô tô đi số ki lô mét là:

38x2=76(km)

Giờ thứ sáu ô tô đi được số ki lô mét là:

246-( 126+76)=44(km)

Vậy giờ thứ sáu xe đi được 44 km

24 tháng 1

Giải:

Vì thêm số 2 vào bên trái số bé thì được số mới mà tổng hai số đó là số có 3 chữ số nên số mới là số có ba chữ số và hơn số ban đầu là:

2 x 100 = 200

Theo bài ra ta có sơ đồ:

Theo sơ đồ ta có:

Số ban đầu là:

(620 - 200) : 2 = 210 (vô lí)

Không có số nào thỏa mãn đề bài.

24 tháng 1

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24 tháng 1

1. no
2. learn in Ho Chi Minh City University of Medicine and Pharmacy
3. VN

24 tháng 1

hmmmmmmmmmmmmmmmmmmmmmmmmm

I. Trắc nghiệm Ngữ pháp & Từ vựng (Multiple Choice)If she ______ harder, she would have passed the final exam.A. studiedB. studiesC. had studiedD. has studiedThe man ______ next to me is a famous singer.A. sittingB. sitsC. satD. is sittingThe Global Success book states that the problem must ______ immediately.A. solveB. be solvedC. solvingD. solvedHardly ______ entered the room when the phone rang.A. he hadB. had heC. heD. did heDespite ______ sick, she still went to school.A. she...
Đọc tiếp

I. Trắc nghiệm Ngữ pháp & Từ vựng (Multiple Choice)

If she ______ harder, she would have passed the final exam.

A. studied

B. studies

C. had studied

D. has studied

The man ______ next to me is a famous singer.

A. sitting

B. sits

C. sat

D. is sitting

The Global Success book states that the problem must ______ immediately.

A. solve

B. be solved

C. solving

D. solved

Hardly ______ entered the room when the phone rang.

A. he had

B. had he

C. he

D. did he

Despite ______ sick, she still went to school.

A. she was

B. being

C. was

D. she is

II. Viết lại câu (Sentence Transformation)

"Why don't you take a break?" he said to me.

-> He suggested ____________________________.

Although it rained heavily, they went camping.

-> Despite ____________________________.

They believe that the company is losing money.

-> The company is believed ____________________________.

He didn't bring an umbrella, so he got wet.

-> If he ____________________________.

This is the house. I was born there.

-> This is the house ____________________________.

III. Câu hỏi Đọc hiểu/Chủ đề (Reading/Topics)

Environmental issues: How can we reduce our carbon footprint?

Future jobs: Which jobs will be popular in the next 10 years?

Cultural diversity: What are the benefits of cultural exchange?

1
24 tháng 1

1. C. had studied 2. A. sitting 3. B. be solved 4. B. had he 5. B. being

24 tháng 1

6. He suggested that I take a break. 7. Despite the heavy rain, they still went camping. 8. The company is believed to be losing money. 9. If he had brought an umbrella, he wouldn't have got wet. 10. This is the house where I was born.

24 tháng 1

7÷140=1/20=0.05

24 tháng 1

7 : 140 = 0,05

0,05 = 5%

24 tháng 1

Giải:

Lớp đó có số bàn là:

38 : 2 = 19 (cái bàn)

Đáp số: 19 cái bàn.

24 tháng 1

I live at Vinh Phuc Ward, Phu Tho Province

She does her homework

I can see an easy English exercise.

24 tháng 1

1. I live in Hanoi. 2. She is a teacher. 3. I can see a beautiful garden.

24 tháng 1

1. It is located in Ha Noi, Viet Nam.

2. It was built in 1070 by King Ly Thanh Tong.

3. There are five courtyards.

4. The third courtyard has Khue Van Pavilion.

5. It is a symbol of Hà Nội and represents education, literature, and learning.

24 tháng 1
  • Where is the Temple of Literature?
    It is located in Hà Nội, Việt Nam.
  • When and by whom was it built?
    It was built in 1070 by Emperor Lý Thánh Tông.
  • How many courtyards are there in the Temple of Literature?
    There are five courtyards.
  • Which courtyard has Khue Van Pavilion?
    The third courtyard has Khue Van Pavilion.
  • What is the Khue Van Pavilion symbol used for?
    It is a symbol of Hà Nội and represents education, literature, and Vietnamese culture.
24 tháng 1

`(2x+1)(x^2 -49)=0`

`(2x+1)(x^2 -7^2)=0`

`(2x+1)(x-7)(x+7)=0`

`2x+1=0` hoặc `x-7=0` hoặc `x+7=0`

`x= -1/2` hoặc `x=7` hoặc `x=-7`

Vậy `x in {-1/2 ;-7;7}`

24 tháng 1

(2x + 1)(x^2 - 49) = 0

2x + 1 = 0 hoặc x^2 - 49 = 0

2x + 1 = 0 suy ra 2x = 1 suy ra x = 1/2

x^2 - 49 = 0 suy ra x^2 = 49

suy ra x = -7 hoặc x = 7

Vậy x ∈ {-7; -1/2; 7}