Предмет: Математика, автор: sanya101

выразите x из формулы a=(x+8):9

Ответы

Автор ответа: alinka992012

Умножаем на 9 обе стороны, 9а=x+8; x=9a-8)

Автор ответа: Artem112

$a= frac{x+8}{9} \ x+8=9a \ x=9a-8$

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Биология, автор: liltoertoese

❗СРОЧНО❗ДАМ 30 БАЛЛОВ❗
Эссе по биологии "5 полезных растений"
заранее спасибо✨

6 лет назад

Предмет: Английский язык, автор: HACTYLR

Помогите!!!

1. I ... a book about computer-based technologies at the moment.
a) read b) am reading c) reading
2. Don't speak loudly! They ... the documents.

a) prepare b) are preparing c) preparing

3. Russian computer specialists ... to develop new means of communication at present.

a) try b) are trying c) is trying

4. Turn off the TV-set, please. I ... it.

a) do not watch b) not watching c) am not watching

5. What ... Kate now ? She’s speaking over the phone.

a) is, doing b) does, do c) are doing

6. I couldn't call you back at that moment, because I ... English on the Internet.

a) practised b) were practising c) was practising

7. When we entered the room, the students ... sms messages.

a) didn't read b) wasn't reading c) were not reading

8. They ... their new goods, when I switched on my TV-set.

a) advertised b) advertise c) were advertising

9. While the teacher was explaining how to arrange financial information, the students ... ring tones.

a) was downloading b) downloading c) were downloading

10. What ... you yesterday at 3 ? - I was trying to connect to our company computer.

a) did, do b) doing c) were, doing

11. A couple of years from now, computers ... cars and electrical appliances.

a) control b) will control c) will be controlling

12. Will you be at home tonight ? - Yes, I ... TV the whole evening.

a) watch b) will watch c) will be watching

13. The students ... in the computer class from 10 till 12 tomorrow.

a) will be working b) will working c) will work

14. Where ... he … for me tomorrow at 3?

a) wait b) will wait c) will be waiting

15. Come to my place tomorrow. I ... for the exams the whole day.

a) don’t prepare b) will not be preparing c) will not prepare

16. The executives ... new technology at the meeting now.

a) were discussing b) are discussing c) will be discussing

17. When I ... with my friend, the battery ran out.

a) was speaking b) am speaking c) will be speaking

18. When I left home, she ... a telephone call from a young inventor.

a) was waiting for b) is waiting for c) will be waiting for

19. Tomorrow at 5 I ... the instruction of my new cellular phone. I'm not good at modern technologies. Could you come to help me, please?

a) am studying b) was studying c) will be studying

20. Are you busy tomorrow ? - Yes, my group mate will come to me, we ... a web-page the whole day.

a) are designing b) were designing c) will be designing

21. It's raining ... .

a) heavy b) heavily c) heavier

22. The weather wasn't very ... yesterday, but it's ... today.

a) better, good b) good, better c) good, gooder

23. Nokia is ... than Samsung.

a) more reliable b) reliable c) reliablest

24. The ... the size of the memory card is, the ... pictures you can keep in your camera.

a) bigger, more b) big, many c) biggest, most

25. The demand for this model this year is not so ... as it was last year.

a) high b) higher c) the highest

26. He made ... phone calls but nobody answered.

a) much b) many c) a lot of

27. They have ... money. They are very poor.

a) little b) few c) much

28. How ... homework do you have ?

a) many b) much c) few

29. Her French is very good. She makes ... mistakes.

a) many b) little c) few

30. They have got some very nice ... in their house.

a) furniture b) furnitures c) оба варианта верны

31. I’m going to buy a lot of new ... .

a) clothe b) clothes c) clotheses

32. Listen! I have got ... good ... .

a) many news b) some, news c) some, newses

33. Where were you last night ? - I was at my ... .

a) parents’ house b) parents’s house c) parents house

34. Do you know ... ?

a) the phone number’s Bill b) Bills phone number

c) Bill’s phone number

35. We didn’t see ... .

a) the film’s beginning b) the beginning of the film

c) the beginning’s film

6 лет назад

Предмет: Математика, автор: mikolafrankiv0

Побудувати пряму яка відтинає від осі Oy відрізок b=3 і утворює з віссю Ox кут 45градусів. Записати рівняння цієї прямої

6 лет назад

Предмет: Алгебра, автор: zhanna001

вычислите cos75 градусов

10 лет назад

Предмет: Математика, автор: анапко

2,56 * 0,44 * 2,25

______________ = ???

3,2 * 0,12 * 0,6

помогите решить дробные выражения

10 лет назад