Giúp vs ạaaaaaaaaaaaaaaaaaaaaaa

Một người đi xe đạp đi được 1/3 quãng đường đầu với vận tốc v1= 10km/h , đi quãng đường còn lại với vận tốc v2= 15km/h Tính vận tốc trung bình của người đó trên cả quãng đường

giúp mình vớiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Mấy anh chị ơi giúp em với ạ 🙏

1/ Tính hoá trị của: a) Nguyên tố Fe trong hợp chất FeCl2, biết clo có hóa trị I b) Nguyên tố Mg trong hợp chất Mg3(PO4)2, biết nhóm PO4 có hóa trị III. 2/ Viết công thức hóa học và tính phân tử khối của hợp chất tạo bởi Fe (III) và (SO4) (II). Nhanh!! Cần gấp Phải làm đúng!!!

giúp e làm ra giấy kẻ ngang với e cám ơn hứa vote 5*

Sai chỗ nào vậy mọi người giúp mình với

Mọi người ơiiii,em đang cần gấp ý (c) ạ Em sẽ vote và cảm ơn đầy đủ ạ

M.n ơi có ai biết không ạ , làm ơn chỉ giúp em với ạ 🙏 e cảm ơn nhiều nhiều ạ 🙏🙏

10. Study hard or you can’t pass the final exam. -> If ...................... ………………………………………………………………………………… 11. I have a lot of students, so I can’t remember all their names. -> I have so ............................................................................................................................................. 12. Because Nam is very intelligent, he can pass the exam easily. -> Nam is ............................................................................................................................................... 13. The street children are very poor, so they don’t have enough food to eat. -> The street children are so ...................................................................................................................... 14. Lan is too young to decide for herself. -> Lan is so ............................................................................................................................................ 15. She is on a diet, but she ated the chocolate cake. -> Though .................................................................................................................................................... 16. In spite of the bad weather, we’re going to have a picnic. -> THough .................................................................................................................................................. 17. Despite his bad grades, he’ll be admitted to the school. -> Although ................................................................................................................................................ 18. We enjoyed our holiday despite the rain. -> Although .............................................................................................................................................. 19. I kept smiling in spite of not understanding a word. -> Although ............................................................................................................................................... 20. She disliked coffee. She drank it to keep herself warm. -> Though ............................................................................................................................................... 21. We took many pictures. The sky was cloudy. -> Although ............................................................................................................................................... 22. Nancy was sad after losing the contest, but she managed to smile. -> Even though ........................................................................................................................................ 23. She told interesting stories to her son. She had a poor memory. -> Despite ................................................................................................................................................. 24. He always drives carefully. He doesn’t want to cause accidents -> He always drives carefully in order ....................................................................................................... 25. Because of having a lot of difficulties, she mangaged to sell the house. -> As ………………………………………………………………………………………………….. 26. Peter has a bad cold, so he is in bed now. -> Because …………………………………………………………………………………………….. 27. The beach is so dirty that no one can swim in it. -> It ..................................................................................................................................................... 28. It was raining, so we decided to postpone our camping -> Since ……………………………………………………………………………………………… 29. She couldn’t come to class because of her illness. -> As …………………………………………………………………………………………………. 30. She isn’t old enough to decide for herself -> She is so ..................................................................................................................................