Đáp án:
Giải thích các bước giải:
e)
`(3 1/2+2x):3/14=7/12`
`=>3 1/2+2x=1/8`
`=>7/2+2x=1/8`
`=>2x=(-27)/8`
`=>x=(-27)/16`
Vậy `x=(-27)/16`.
f) `x:4/5=25/8:5/4`
`=>x:4/5=5/2`
`=>x=2`
Vậy `x=2`.
g) `9/4x+15/8=25/8`
`=>9/4x=10/8`
`=>x=5/9`
Vậy `x=5/9`.
dạ mik gửi
xin ctlhn cho nhóm
Làm giúp mik vs ạ Mik cho5 sao lun
cho Δ MPQ có đg cao PR và QS a) CM:MP.MS=MQ.MR b) CM: Δ MRS đồng dạng với Δ MPQ Giúp MÌnh với
1. Felix/ phone/ the fire brigade/ when the cooker/ catch/ fire ____________________________________________________________________________________ 2. when the starter/ fire/ his pistol/ the race/ begin ____________________________________________________________________________________ 3. he/ sit/ in the garden/ when/ a wasp/ sting/ him/ on the nose ____________________________________________________________________________________ 4. while/ he/ run/ for a bus/ he/ collide/ with a lamp post ____________________________________________________________________________________ 5. Vicky/ have/ a beautiful dream/ when/ the alarm clock/ ring ____________________________________________________________________________________ 6. when/ Alex/ see/ the question/ he/ know/ the answer/ immediately ____________________________________________________________________________________ 7. the train/ wait/ when/ we/ arrive/ at the station ____________________________________________________________________________________ 8. Sarah/ have/ an electric shock/ when/ she/ touch/ the wire ____________________________________________________________________________________ 9. when/ the campers/ wake/ they/ see/ the sun/ shine ____________________________________________________________________________________
Exercise 2: Find the mistakes and correct them 1. If Lucia had been here now, she would find out the truth about her uncle's accident. A B C D 2. Unless we leave a bowl of water under the sun, it will evaporate. A B C D 3. If I had knew the time when the match started, I would have told you. A B C D 4. If I am 10 centimeters taller, I would play basketball. A B C D 5. If the doctors could find in the remedy, a lot of people would be saved. A B C D 6. If I had realized that the traffic lights were red, I would stop. A B C D 7. What you would do if you could speak French well? A B C D 8. If I had known he is not at home, I wouldn't have gone all the way to his house. A B C D 9. If had I known you were in financial difficulty, I would have helped you. A B C D 10. If I were you, I will go to the dentist's and have the tooth checked. A B C D 11. If you hadn't left the car unlocked, it wouldn't have be stolen. A B C D 12. What would happen because I pressed that red button? A B C D 13. If the weather is fine today, we would go to the beach. A B C D 14. If you will study harder, you will surely pass the coming exams with good results. A B C D 15. If the weather weren't too bad, we would to go swimming. A B C D 16. If he weren't too old, he would apply to the job as a war reporter. A B C D 17. If drivers obeyed the speed limit, fewer accidents occur. A B C D 18. If I would have studied Russian at school, I would have understood him easily. A B C D 19. If tomorrow the weather will be bad, the match will be postponed. A B C D 20. If you saw Mike today, please ask him to phone me. Mn người tìm lỗi sai và sửa hộ e vs ạ
Vẽ logo hoidap247. Xấu = bc Ko vừa ý cx bc
Có 2 cái bánh như nhau, chia đều cho 3 người. Hỏi mỗi người nhận được bao nhiêu phần bánh?
mảnh vườn này có 50cây hoa và 67cây xanh hỏi có bao nhiêu cây
giúp ạaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Giải thích tại sao lượng nước mô trong cơ thể những người bị huyết áp cao lại nhiều hơn so với người bình thường?
Ai biết giúp em ạ ! Còn có 10 điểm thôi ! Lèm ơn =( ToT Một tấm bảng chỉ dẫn có kích thước như hình vẽ dưới đây. Tính diện tích của tấm bảng chỉ đường đó.
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