Предмет: Математика, автор: Аноним

помогите решить задачу


 Перед посадкой семена моркови смешивают
с песком в отношении 2 : 5. Определите
массу семян, если песка потребовалось
200 г.

Ответы

Автор ответа: miron2077
0
200:5=40г одна часть смеси
40*2=80г  семена
Автор ответа: nikmal57
0
(200/5) х 2 = 80

вес семян моркови составляет 80 грамм
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Вставьте артикли.


1. This is … address book.


a) a; b) an; c) the; d)


2. Open your … exercise-books.


a) a; b) an; c) the; d)


3. Steve is … actor in the theatre.


a) a; b) an; c) the; d)

4. She plays … violin.


a) a; b) an; c) the; d)


5. There's taxi outside.


a) a; b) an; c) the; d)


6. Lisbon is capital of Portugal.


a) a; b) an; c) the; d)


7. Last night I went to … Indian restaurant.


a) a; b) an; c) the; d)


8. I had … nice meal there.


a) a; b) an; c) the; d)


9. larrive at airport just on time.


a) a; b) an; c) the; d)


10. Have you been to … Acropolis?


a) a; b) an; c) the; d)


11. … Kremlin is the heart of Moscow.


a) A; b) An; c) The; d)

12. Can you play… guitar?


a) a; b) an; c) the; d)


12. … London stands on … Thames.


a) A; b) An; c) The; d)


13. … lake Baikal is the largest lake in the world.


a) A; b) An; c) The; d)


14. Who is … President of the United States?


a) a; b) an; c) the; d)


15. He is … most intelligent student in the college.


a) a; b) an; c) the; d) -


16. He went to … bed at 10 p.m.


a) a; b) an; c) the; d)


17. Dickens' father was sent to … prison for debts.


a) a; b) an; c) the; d)


18. She goes to … school.


a) a; b) an; c) the; d)


19. … Everest is the highest mountain.


a) A; b) An; c) The; d)


20. Where is … Mississippi river?


a) a; b) an; c) the; d)


21. Do you want to go to … theatre with us?


a) a; b) an; c) the; d)


22. What is … capital of Italy?


a) a; b) an; c) the; d)


23. Is Paris in … United Kingdom?


a) a; b) an; c) the; d)


24. He has got … camera.


a) a; b) an; c) the; d)


25. We go to … beach in summer.


a) a; b) an; c) the; d)


26. Christopher Columbus crossed … Atlantic Ocean.


a) a; b) an; c) the; d) 796. He plays … tennis.


a) a; b) an; c) the; d)


27. My father isn't at … home.


a) a; b) an; c) the; d)


28. Paula comes from … Canada.


a) a; b) an; c) the; d)


29. It's … glove Michael Jackson wore in the "Bad" video.


a) a; b) an; c) the; d)


30. This is … old pair of trousers.


a) a; b) an; c) the; d)


31. He lives in … Colorado.


a) a; b) an; c) the; d)
Предмет: Математика, автор: dfdf345