Предмет: Математика, автор: mamusya26

число 23 збільшити на різницю чисел 15 і 9

Ответы

Автор ответа: Любочка24

15 - 9=6;
23 + 6 =29;

Автор ответа: ygulkovskaya

23+(15-9)=39 .

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Другие предметы, автор: vlya111284

коли витрачається більше енергії: готуючи уроки за письмовим столом з настільною лампою потужністю 60 Вт протягом трьох годин,чи увімкнувши чайник потужністю 600Вт га 10 хвилин,щоб випити чашку чаю?

6 лет назад

Предмет: Українська література, автор: ilyakozak2280917

Скласти модель демократичного суспільства Тухольців із твору Захар Беркут

6 лет назад

Предмет: Английский язык, автор: isakovi86

Выберите грамматически верный вариант ответа.
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: Химия, автор: Танюша89

Расставьте индексы и дайте названия: Zn...Cl... , Mg...NO4..., Ca...PO4...,Al...S...,Fe(3)...SO4..., Na... SiO3..., Na... NO3... .

10 лет назад

Предмет: Математика, автор: Sunshine81

Помогите решить задачу, пожалуйста!!! К новому учебному году в школу привезли учебники. 5/18 всех учебников передали в начальную школу, 11/18 в среднюю, а остальные 400 учебников- старшим классам. Сколько всего учебников привезли в школу?

10 лет назад