x/5 =32/80 và 13/x = -26/30 và -x/7 = 22/-77

cho hình thang ABCD có đáy AB và CD. Trên đáy AB lấy hai điểm M và N sao cho AM=MN=NB=1cm. Hãy so sánh diện tích hình thang MNCD với diện tích hình thang ABCD, biết rằng DC=5cm

Tổng 2 số là số tròn chục lớn nhất có 2 chữ số. Nếu thêm mỗi số hạng 2 đơn vị thì tổng mới là bao nhiêu

Cho Tam giác ABC lấy M là trung điểm của cạnh BC Trên tia đối của tia MA lấy điểm D sao cho MA=MB Chứng Minh a, tam giác AMB= tam giác DMC

Giúp hết đề 6 này nhé!Ko thiếu 1 câu,ko biết ko trả lời

cho a;b là 2 số nguyên khác 0, bt a chia hết cho b, a chia hết cho b . c/m : a=+-b

Giúp mình ve mn mình đang cần gấp ạ câu bốn nha mn

A.PHONETIC Exercise 1: Find the word which has a different sound in the part underlined. 1. A. there B. weather C. thanks 2. A. thirsty B. there C. throw 3. A. then B. their C. think 4.A.although B. worth C. mouth 5.A.tooth B. breathe C. warmth B.LANGUAGE FOCUS Exercise 1:Choose the best answer 1. __________is on TV tonight?- Tom and Jerry. (When/ Who/ What) 2.____________hours do you watch TV a day? About 1hour. (When/ How many/ How often) 3. If you want to know which film is on tonight, check the TV___________ ( programme/ information/ schedule) 4. Watching too much TV is not good for your health___________it hurts your eyes. ( because/ so/ but) 5. ___________are films by pictures, not real people and often for children. ( Documentaries/ Detective films/ Cartoons) Exercise 2: Fill each blank with a word/ phrase in the box. go/chess/camping/cooking/music/gymnastics/books/dolls/ bottles/ fishing 1. I like …........... I usually play against my brother. I also play against other people on the Internet 2. My younger sister likes collecting . Now she has more than 50 …............ 3. I'm interested in …........... . My idol is My Tam. 4. My girl friend likes doing …..........., so she has a nice body. 5. I never …...........skiing. 6.He likes reading …........... His favorite writer is Van Cao. 7. My hobby is …...........with my friends when I have some days off. 8. My family usually goes…...........on weekends. 9. He likes collecting , especially …...........glasses. 10. My mother likes …........... . She can cook lots of delicious dishes. C.READING Exercise: Choose the correct answer A, B, C or D to fill each blank in the following passage. Nowadays, television becomes very popular. Both old and young people (1)…………. watching it very much, TV programs attract millions of (2)………….. all around the world. In addition to the news television stations also broadcast many interesting programs such (3)………sports, music, cartoons, wild life, popular science, reports, contests, movies, etc. At present, people (4)…………..enjoy a live program on TV. Live program helps us (5)…………events at the same time as they are happening. 1. A. like B. relax C. take 2. A. guest B. viewers C. audiences 3. A. that B. are C. as 4. A. must B. can C. can’t 5. A. broadcast B. listen C. see Giúp em vs

Tìm hai số biết tổng hai số là 3 1/2 và 1/3 số thứ nhất bằng 25% số thứ hai. Lưu ý: 3 1/2 la hỗn số nhá Các ban giúp minh voi

Giúp mk vs mọi người, xin cảm ơn