@Bơ
Đáp án:
Giải thích các bước giải:
a.
`7x-8=713``7x=713+8``7x=721``x=721:7``x=103`
b.
`2x +69.2=69.4``2x=69.4 - 69.2``2x=69.(4-2)``2x=69.2``2x=138``x=69`
c.
`2x-12-x=0``2x-x-12=0``x-12=0``x=0+12``x=12`
`7x - 8 = 713`
`7x = 713 + 8`
`7x = 721`
`x = 721 : 7`
`x = 103`
Vậy `x = 103`
`2x + 69 . 2 = 69.4`
`2x = 96.4 - 69 . 2`
`2x = 69 . (4 - 2)`
`2x = 69 . 2`
`x = 69`
Vậy `x = 69`
`2x - 12 - x = 0`
`(2x - x) - 12 = 0`
`x - 12 = 0`
`x = 0 + 12`
`x = 12`
Vậy `x = 12`
đề: vẽ pic dưới yc: tradi full line kí đủ vẽ tử tế ạ giống 90% ( nền màu đen ạ)
31. I fell into the water when I tried to get out of the canoe. A. enter B. start C. climb D. exit 32. I want you to carry on with the project while I am out of town. A. bring B. end C. abandon D. continue 33. If the world’s tropical forests continue to disappear at their present rate, many animal species will be extinct. A. die out B. die from C. die of D. die for 34. Didn’t they notice the “No Camping” sign? A. keep up with B. catch sign of C. take advantage of D. keep track of 35. Now, Peter has become accustomed to driving to the left A. has got used to B. has become upset with C. has become angry with D. all are correct 36. The bomb went ____with a loud bang which could be heard all over the town. A. on B. off C. out D. by 37. Go _________ this book because it has the information you need. A. over B. by C. off D. on 38. She looked _________ me, smiling happily and confidently. A. on B. over C. forward D. at 39. I arranged to meet Jim after work last night but he didn’t turn _________ A. off B. up C. on D. down 40. I’ve lost my keys. Can you help me look _________ them? A. up B. after C. for D. into 41. She still can't get _________ the shock for her baby's death. A. out B. on C. over D. away
giup minh vs, ko can lam nhanh dau,lam den chieu cung dc
V. Write the second sentence so that it has a similar meaning to the first one. 1. She likes to hang out with friends on Saturday evening. She’s interested _____________________________________________________________ 2. She only allows her children to watch television at weekends. She only lets _______________________________________________________________ 3. How about going window-shopping this afternoon? Shall _____________________________________________________________________
Mong mọi ng làm giúp+ giải thích cho mình hiểu với ạ !!!! Hứa sẽ vote 5 sao
Câu 1 (2,0 điểm) Từ nội dung đoạn trích ở phần Đọc hiểu, hãy viết một đoạn văn (khoảng 200 chữ) trình bày suy nghĩ của anh chị về sức mạnh của ý thức cội nguồn đối với mỗi người. Mọi người giúp mình vs mk đang cần gấp
anh chị giúp e những câu này vs ạ
$3 ( x - 2 ) ( x + 3 ) - x (3x + 1) = 2$
Chứng minh `1/100+1/101+...+1/199+1/200>7/12`.
CHOOSE THE ANSWERS. ( PHRASAL VERBS) 20. He did not particularly want to play any competitive sport. A. use up B. do with C. take up D. go on 21. I am tired because I went to bed late last night. A. stayed up B. kept off C. put out D. brought up 22. The small white flowers are my favorite. They give off a wonderful honey smell that scents the entire garden. A. release B. stop C. end D. me 23. I felt let down when I didn't receive a birthday card from my sister. A. disappointed B. interested C. excited D. bored 24. Do you have to light up another cigarette? I thought you were trying to cut down. A. burn B. illuminate C. save D. smoke 25. I couldn't make out what he had talked about because I was not used to his accent. A. stand B. understand C. write D. interrupt 26. The firefighters fought the blaze while the crowd was looking on it. A. blowing B. watering C. preventing D. watching 27. The police are looking into the murder. A. redoing B. investigating C. doing D. ignoring 28. Within their home country, National Red Cross and Red Crescent societies assume the duties and responsibilities of a national relief society. A. take on B. get off C. go about D. put in 29. Giovanna doesn't get along with her two brothers. A. agree with B. hate C. please with D. have a good relationship with 30. You don't need a computer. You can get by with the typewriter. A. understand B. manage with C. buy D. pass with
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến