a) Ta giữ nguyên 3 / 5 và biến đổi :
2 / 1 = 2 x 5 / 1 x 5 = 10 / 5
b) Ta giữ nguyên 5 / 9 và biến đổi :
5 / 1 = 5 x 9 /1 x 9 = 45 / 9
Ta có :
5 / 9 = 5 x 2 / 9 x 2 = 10 / 18
5 / 1 = 5 x 18 / 1 x 18 = 90 / 18
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Đáp án:
Giải thích các bước giải:
Giúp em với ạ, em cảm ơn nhiều ạ
giúp mk vs ạ , mk cần gấp ạ . Phiếu 2 thì câu 1 và 5 là k cần lm ạ .
Choose the best option A, B, C or D to complete the sentences below. Câu 1 It is not easy ----------- to drive this new kind of vehicle. A. to learning B. learning C. to learn D. learn Câu 2Wave energy is a source of ----------- energy. A. environment friendly B. environmental friendly C. environmentally friendly D. environmentally friendliness 9 Choose the best option A, B, C or D to complete the sentences below. On Passover Day, people ----------- freedom from slavery. A. celebrate B. choose C. contribute D. participate 10 Choose the best option A, B, C or D to complete the sentences below. Câu 3 Kaka: "I don"t like playing soccer for M.U" - Messi:" -----------." A. Neither do I B. I don"t, too C. So do I D. So don"t I 4. Alternative sources of energy ----------- developed in the near future. A. has been B. is C. will be D. was 5 Emergency repairs were expected ----------- three weeks. A. take B. takes C. took D. to take 6. The cars which are generated by solar energy are called ----------- cars. A. solar-wasted B. solar-daily C. solar-friendly D. solar-powered 7 .More open discussions ----------- online to help us reach a good decision. A. will conduct B. will be conducted C. conducted D. conducts 8 Dung: “I don’t know where Mai is. ----------- her?” - Lan: “I’ve just met outside the classroom” A. Are you seeing B. Have you seen C. Will you see D. Did you see 9 People won’t use flying cars ----------- the year 2050. A. after B. during C. before D. until 18 Choose the best option A, B, C or D to complete the sentences below. We should wait for the traffic lights ----------- before we cross the street. A. turn yellow B. turn green C. to turn yellow D. to turn green 19 Choose the best option A, B, C or D to complete the sentences below. What should we do to ----------- electricity. A. cut B. save C. take D. waste 10 An old woman has just been ----------- at the theater near the city center. A. robbed B. robber C. rob D. robbing
Giúp em với ạ, em đang cần gấp, em cảm ơn!!!
đề bài: tìm hiểu sự khác nhau giữa các quốc gia Đông Nam Á gợi ý: +Vị trí địa lí +Khí hậu +Đặc điểm dân cư +Đặc điểm kinh tế +Tín ngưỡng +Phong tục +Chính Trị ( còn về phần trang phục cổ truyền thì không cần nha, mn có thêm phần j nữa thì càng tốt nha )
M=12-/x-15/ Tìm giá trị lớn nhất của M
a bạn Mai, Bình, An thi gấp thuyền. Mai gấp ít hơn Bình 8 chiếc. Bình gấp ít hơn An 6 chiếc. Hỏi Mai gấp ít hơn An bao nhiêu chiếc thuyền?
I.Put the words in the correct order. 1. best novels/ will be/ His/ next year./ pulished => ................................................................................................................................................... 2. Reduce/ which/ not buying/ overpackaged./ means/ are/ products => ................................................................................................................................................... 3. thirty times./ can be/ Every milk bottle/ reused => ...................................................................................................................................................
Từ hình ảnh “cần trúc lơ phơ gió hắt hiu” em tưởng tượng ra cảnh mùa thu như thế nào
Giúp mình mấy câu này vs. Mình cho 5 sao ah REWRITE 1. His speech at the meeting was similar to apology.( Nature) 2. Mr. Lam would have been the president had he not fallen ill.( Was) 3. If we had remembered to take to map, we wouldn't have missed the turning. ( What) 4. With proper plans, they have successfully carried out the survey => Had.... 5. They believed that someone had shot his wife to death => His wife.... Mình cảm ơn ah~~~
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