Đáp án:
$x = 5$
Giải thích các bước giải:
$x × 6 + 8 = 38$
`=>` $x × 6 = 38 - 8$
`=>` $x × 6 = 30$
`=>` $x = 30 : 6$
`=>` $x = 5$
Vậy $x = 5$
X x 6 + 8 = 38
⇒ X x 6 = 38 - 8
⇒ X x 6 = 30
⇒ X = 30 : 6
⇒ X = 5
VI. Chọn câu viết lại đúng nhất với câu cho trước. (1.5 điểm) 1.“What do you usually do in your free time ?” The examiner asked him. A. The examiner asked him what you usually did in your free time. B. The examiner asked him what I usually did in my free time. C. The examiner asked him what did he usually do in his free time? D. The examiner asked him what he usually did in his free time. 2.Start at once or you will be late for school. A. If you start at once, you will be late for school. B. Unless you start at once, you won’t be late for school. C. You won’t be late for school if you don’t start at once. D. If you don’t start at once, you will be late for school. 3.“We are very happy to see you here”, the students said to Mr. White. A. The students said to Mr. White that they were very happy to see him there. B. The students said to Mr. White that they are very happy to see him here. C. The students said to Mr. White that they were very happy to see him here. D. The students said to Mr. White that they are very happy to see him there. 4.He said that he was going to have a new school bag. A. “I am going to have a new school bag” he said. B. “I was going to have a new school bag” he said. C. “He was going to have a new school bag” he said. D. “He is going to have a new school bag” he said. 5.When was this car bought? A. When do they buy this car? B. When did they bought this car? C. When did they buy this car? D. When were they bought this car?
Tìm các số nguyên n để n + 5 chia hết cho n - 2
70kg 3g=.......kg 5m 7cm=.......m 7200m=........km 5km7m=.......km 7000dm2=.....m2 5dm2 7dm2=.....m2 (m cảm ơn mn n lắm)
Chỉ được dùng thêm 1 hoá chất , hãy trình bày phương pháp hoá học nhận biết 6 lọ bị mất nhãn đựng riêng biệt các chất rắn sau: CuO, Fe3O4, Fe, FeO, FeS, Ag2O. Viết Pt
6 giờ 55 + 1 giờ 30 5 giờ 55 + 55 phút
Xác định chỉ từ trong các ví dụ và nêu lên hoạt động của chỉ từ trong câu: a, Từ đó hàng năm thủy tinh vẫn dâng nước đánh Sơn Tinh nhưng đều bị thua. b, Ngôi nhà ấy trông thật đẹp. c, Cuộc kháng chiến chống Mĩ của nhân dân ta nhất định thắng lợi.
nhà bạn lan mua 14kg gạo đủ ăn trong một tuần lễ. hỏi nếu mua 20kg gạo tjif đủ ăn trong bao nhiêu ngày ? <biết rằng mức ăn ko thay đổi>
Tính diện tích tam giác có độ dài 3 cạnh là các số nguyên và có 1 cạnh bằng 7cm.
heeeeeeeeeeeeeeeeeelp meeeeeeeeeeeeeeee ......
VI. Chọn câu viết lại đúng nhất với câu cho trước. (1.5 điểm) 1.Have you fed the chickens yet? A. Has somebody fed the chickens yet? B. Have the chickens fed yet? C. Have the chickens been fed yet? D. Have they had the chickens fed yet? 2.Jenny does not play tennis as well as she used to. A. Jenny used to play tennis worse than she does now. B. Jenny used to play tennis as well as she does now. C. Jenny used to play tennis better than she does now. D. Jenny used to play tennis as badly as she does now. 3.He said to the boys, “Please bring me some hot water”. A. He told the boys to bring me some hot water. B. He told the boys please to bring him some hot water. C. He told the boys to bring him some hot water. D. He told the boys bring him some hot water. 4.She said that she couldn’t go out after 8 p.m. A. She said, “I couldn’t go out after 8 p.m”. B. She said, “She can’t go out after 8 p.m”. C. She said, “I can’t go out after 8 p.m”. D. She said, “She couldn’t go out after 8 p.m”. 5.“John, please don’t tell anyone about my new address”, said Mary. A. Mary asked John don’t tell anyone about her new address. B. Mary asked John not to tell anyone about his new address. C. Mary asked John not to tell anyone about her new address. D. Mary asked John don’t tell anyone about his new address. Giup mình với ạ!!! Mình cảm ơn nhiều ạ :3
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