1/
1/6 và 2/5≈1×5/6×5≈5/30
1/6 và 4,7≈1×7/6×7≈7/42
6,4 và 3/5≈6×5/4×5≈30/20
2/5 và 3/4≈2×4/5×4≈8/20
chúc học tốt
Đáp án:
Giải thích các bước giải:
Bài 4
a)250 x 15+250 x50+250x35=250x(15+50+35)
=250x100
=250
b)248x154-248x54=248x(154-54)
=248x100
=24800
giúp mình với đặt 5 câu với: + I/YOU/WE/THEY +V +HE/SHE/TÊN AI ĐÓ +VS +HE/SHE/TÊN AI ĐÓ +VES TỔNG TẤT CẢ 15 CÂU AI GIÚP MÌNH MÌNH VOTE 5 SAO
Tài nguyên thiên nhiên có tầm quan trọng như thế nào với sự phát triển kinh tế đất nước? Hãy cho biết môi trường và TNTN có ý nghĩa như thế nào?
408. 1 khu vườn hình thang có diện tích 270a và trung bình cộng hai đáy bằng 3/5km. Tính chiều cao của khu vườn. 409. 1 hình thang có tổng hai đáy là 9.5m. Nếu giảm cạnh đáy lớn đi 1.6m thì diện tích hình thang giảm đi 1.84m2.Tính diện tích của hình thang đó. 410. 1 thửa ruộng hình thang có trung bình cộng hai đáy là 56.8m. Nếu tăng cạnh đáy lớn thêm 42.6m2. Tính diện tích thửa ruộng đó bằng héc-ta 405. 1 thửa ruộng hình thang có tổng hai cạnh đáy và chiều cao 144m. Cạnh đáy bé bằng 3/4 cạnh đáy lớn, cạnh đáy lớn bằng 4/5 chiều cao. Tính diện tích thửa ruộng bằng héc-ta.
Giúp mình với mình đag cần gấp ạ. Cảm ơn nhiều! Help me Bài tập Tiếng Anh 8 Unit 11: Traveling Around Viet Nam I. Chọn đáp án đúng: 1. I like the film very much. It’s really (amazed/ amazing ). 2. It’s really ( terrifying / terrified) experience. I will never forget it. 3. I have read a (fascinated/ fascinating ) book. It made me (surprised/ surprising) at the immigrants. 4. Some newcomers are easily (embarrassed/ embarrassing) when they can’t express themselves well in English. 5. During the first few years, many immigrants feel (hindering/ hindered) by their slow economic advancement. 6. Stephan felt (disappointed/ disappointing) very when his visa to the United States was denied. 7. They used to go (fishing/ fished) together when they were young. 8. Many baseball players from the Dominican Republic are (excited/ exciting) when they are selected to play for a U.S. team. 9. (got / getting) stuck in the traffic, Sarah knew she was going to be late for work. 10. (Made / making) in Japan, the car was on sale at a very competitive price. II. Chọn đáp án đúng 1. I seldom visit art galleries. I'm not very interesting / interested in art. 2. I had never expected to be offered the job. I was really amazing / amazed when I was offered it. 3. The kitchen hadn't been cleaned for ages. It was really disgusting / disgusted . 4. Do you easily get embarrassing / embarrassed ? 5. The film was disappointing / disappointed . I expected it to be much better. 6. Helen finds her job boring / bored. She wants to do something different. 7. It was a really terrifying / terrified experience. Afterwards everybody was very shocking / shocked III.Complete the sentences, using the following verbs in the correct form. (Hoàn thành câu, sử dụng dạng đúng của các động từ sau.) live invite ring offer call 1. I was woken up by a bell . 2. A lot of the people to the party cannot come. 3. Life must be very unpleasant for people near busy airports. 4. A few days after the interview, I received a letter me the job. 5. Somebody Jack while you were out. IV. Using the verb in parentheses, fill in the blank either with if I + Past tense or with the –ing form of the verb, as appropriate. 1. A: It’s cold in here. Would you mind (close) ………….the window? B: Not at all. I’d be glad to. 2. A: It’s cold in here. Would you mind (close) ………….the window? B: Not at all. Go right ahead. I think it’s cold in here, too. 3. A: Would you mind (take) ………….the book back to the library for me? B: Not at all. 4. A: This story you wrote is really good. Would you mind (show) ………….it to my English teacher? B: Go right ahead. That’d be fine 5. A: I’ll wash the dishes. Would you mind (dry) ………….them? That would help me a lot. B: I’d be happy to. 6. A: I’m feeling kind of tired and worn out. This heavy work in the hot sun is hard on me. Would you mind (finish) ………….the work yourself? B: No problem, Grandpa. Why don’t you go in and rest? I’ll finish it up. 7. A: Would you mind (use) ………….your name as a reference on this job application? B: Not at all. In fact, ask them to call me. 8. A: Would you mind (wait) ………….here for just a minute? I need to run back to the classroom. I forgot my notebook. B: Sure. Go ahead. I’ll wait right here. 9. A: I need to look up the meaning of the word “stationery”. Would you mind (borrow) ………….your dictionary? B: No, I don’t mind. I’m not using it right now. 10. A: Since this is the first time you’ve owned a computer, would you mind (give) ………….you some advice? B: Not at all. I’ll appreciate it.
Vẽ anime nam ( câu hỏi hay đừng báo cáo nha ae )
CẦU CAO NHÂN GIÚP TỚ GIẢI MẤY BÀI NÀY :< Full in the blanks with: a, an, any, some 1. There isn't ... milk in the jar. 2. She'd like ... orange. 3. There are ... oranges and bananas 4. Is there ... meat? 5. There aren't ... noodles. 6. There is ... meat and ... rice for lunch. 7. Are there ... vegetables? 8. I have ... fruit for you. 9. He eats ... apple after his dinner. 10. Would you like ... water, please.
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