Bạn chưa đăng nhập. Vui lòng đăng nhập để hỏi bài

Những câu hỏi liên quan
Yến Ni
Xem chi tiết
Lê Tự Nhật Thạch
Xem chi tiết
Gia Bảo Trần Mậu
Xem chi tiết
Kiều Vũ Linh
16 tháng 9 2023 lúc 9:22

x + 20 + 21 + x + 22 + 23 + x + 24 + 25 + x + 26 + 27 + x + 28 + 29 + x + 30 = 330

6x + (30 + 20) . (30 - 20 + 1) : 2 = 330

6x + 50 . 11 : 2 = 330

6x + 275 = 330

6x = 330 - 275

6x = 55

x = 55 : 6

x = 55/6

Nguyễn Đức Trí
16 tháng 9 2023 lúc 9:28

\(x+20+21+x+22+23+x+24+25+x+26+27+x+28+29+x+30=330\)

\(\Rightarrow\left(x+x+x+x+x+x\right)+\left(20+21+22+23+24+25+26+27+28+29+30\right)=330\)

\(\Rightarrow6x+\left[\left(30-20\right):1+1\right]\left(20+30\right):2=330\)

\(\Rightarrow6x+11.50:2=330\)

\(\Rightarrow6x+275=330\)

\(\Rightarrow6x=55\)

\(\Rightarrow x=\dfrac{55}{6}\)

Gia Bảo Trần Mậu
Xem chi tiết
Kiều Vũ Linh
16 tháng 9 2023 lúc 9:22

x + 20 + 21 + x + 22 + 23 + x + 24 + 25 + x + 26 + 27 + x + 28 + 29 + x + 30 = 330

6x + (30 + 20) . (30 - 20 + 1) : 2 = 330

6x + 50 . 11 : 2 = 330

6x + 275 = 330

6x = 330 - 275

6x = 55

x = 55 : 6

x = 55/6

Đỗ Bùi Diệp Chi
Xem chi tiết
Tiếng Anh
20 tháng 12 2021 lúc 14:23

Cho dạng đúng của động từ trong ngoặc để hoàn thành đoạn văn sau và trả lời câu hỏi

Yesterday (26. be).......was...................Sunday, Nam (27. get).......got...................up at six. He (28. do)……......did...........his morning exercises. He (29. take)……took…...............a shower, (30. comb).....combed....................... his hair, and then he (31. have)…...had......................breakfast with his parents. Nam (32. eat)..............ate...............a bowl of noodles and (33. drink)…………drank…..…….a glass of milk for his breakfast. After breakfast, he (34. help)….....helped.................Mom clean the table. After that, he (35. brush).....brushed..........................his teeth, (36. put)........put....................on clean clothes, and (37. go)..............went..............to his grandparents' house. He (38. have).........had................lunch with his grandparents. He (39. return)………returned……….to his house at three o'clock. He (40. do).........did............his homework. He (41. eat).............ate.........dinner at 6.30. After dinner, his parents (42. take).......took...............him to the movie theater. It (43. be).............was........a very interesting film. They (44. come).............came..............back home at 9.30. Nam (45. go)........went...................to bed at ten o'clock.

46. What day was it yesterday? ...................It was sunday........................................................................................

47. What time did Nam get up? ...................He got up at six.........................................................................................

48. What did he do after breakfast? ......................He helped mom clean the table...............................................................................

49. Who did he have lunch with? ............................He had lunch with his grandparents.............................................................................

50. What timedid he have dinner? ........................he had dinner at 6:30 ...............................................................................

51. What time did Nam go to bed? ......................He went to bed at ten o'clock.................................................................................

Knight™
20 tháng 12 2021 lúc 14:28

Yesterday (26. be) was Sunday, Nam (27. get) got up at six. He (28. do) did his morning exercises. He (29. take) took a shower, (30. comb) combed his hair, and then he (31. have) had breakfast with his parents. Nam (32. eat) ate a bowl of noodles and (33. drink) drank a glass of milk for his breakfast. After breakfast, he (34. help) helped Mom clean the table. After that, he (35. brush) brushed his teeth, (36. put) put on clean clothes, and (37. go) went to his grandparents' house. He (38. have) had lunch with his grandparents. He (39. return) returned to his house at three o'clock. He (40. do) did his homework. He (41. eat) ate dinner at 6.30. After dinner, his parents (42. take) took him to the movie theater. It (43. be) was a very interesting film. They (44. come) came back home at 9.30. Nam (45. go) went to bed at ten o'clock.

46. What day was it yesterday?
=> It was Sunday.

47. What time did Nam get up? 
=> Nam got up at six.
48. What did he do after breakfast?
=> He helped his mom clean the table.

49. Who did he have lunch with?
=> He had lunch with his grandparents.

50. What time did he have dinner?
=> He had dinner at 6.30.

51. What time did Nam go to bed?
=> He went to bed at ten o'clock.

minh Khuat
Xem chi tiết
Nguyễn Khắc Vinh
9 tháng 11 2015 lúc 17:52

Chữ số thứ 1945 là:

1945-(26-1)x2=3860

                  ĐS

Đinh Cao Bảo Hà
Xem chi tiết
an
18 tháng 12 2017 lúc 19:49

Ta có : 84= 2352 : 28 

=> de 2352 : x > 84

<=> 2352 : x > 2352 : 28 

=> x < 28

=> x=26 hoac x = 27

Lê Nguyễn Bình An
3 tháng 11 2022 lúc 22:32

ủa từ de là từ gì

Nguyễn Kim Thành
Xem chi tiết
Đào Ngọc Minh Thư
Xem chi tiết
Nguyễn Phương Chi
7 tháng 9 2016 lúc 13:51

3 nhé

k cho mk mk đag biij âm

Nguyễn Phương Chi
7 tháng 9 2016 lúc 13:52

3 chắc chắn lun

Hồ Khánh Ly
13 tháng 9 2016 lúc 22:12

3 . Chắc chắn 100%