решите систему уравнения способом сложения 3х-5у=2 2х+3у=-5 - №32529382

решите систему уравнения способом сложения 3х-5у=2 2х+3у=-5
- Предмет:
  Алгебра
- Автор:
  carsensih9
- 5 лет назад

Ответы 1

ответ на картинке, с объяснениями
- Автор:
  joaquím
- 5 лет назад
- 0
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Срочно напишите английский язык. Пожалуйста

Put the verbs in brackets into The Past Simple or The Past Continuous.

A – What …….(you/do) at 5 o’clock yesterday afternoon.

B – I …….. (have) basketball practice.

A – What ….(happen)?

B – I …… (walk) down the street when I …..(slip) on a banana skin and …. (fall)down.

A - ……….(you/meet) any new people at the party?

B – Yes. Tom …..(introduce) me to all his friends.

A – Where ………..(you/be) last night? I ……… (try) to call you but there ……(be) no answer.

B – I’m sorry. As I …….(come)back home, I …..( meet) Jane and we (have) dinner together.

A – What …..( you/do) when we ……(call)you yesterday?

B – I ……(get) ready to go out while Jane ……(finish) her project.

– A Where …..( you/meet) Josh?

B – I ……(do) my shopping when he …..(enter)the shop.

A – Who ……(tell) you about the surprise birthday party?

B – No one. Sean …… (talk) to Pat on the phone about it and I ……(hear) him.

_____________________

Choose the correct item. (Quantifiers)

A – Is this scarf expensive?

B – No, not at all. It only costs a little/ a few pounds.

A – Why do you need to change your diet?

B – Because I eat very few/very little vegetables and many/ a lot of junk food.

A – Do you want to have lunch with me?

B – Sure. I have a little / little free time before my next class and I’d also like to ask you few / a few things.

A – Have you come up with any ideas yet?

B – Yes, I’ve had a little / a few. We can discuss them at the meeting later if you like.

____________________________

Fill the gaps with The Past Perfect or The Past Perfect Continuous.

Paul …….(decide) that he was going to study Astronomy before he even finished secondary school.

Before he got a promotion he …….(not/ earn) enough to live comfortably.

Tom didn’t come with us last night because he ……. (arrange) to go out with his colleagues after work.

Before they invented washing machines, people …..(wash) clothes by hand for centuries.

Jill …..(wait) for half an hour before the bus came.

………………(Professor Sterling / already/ announce) the names of the students who would be in his research team when she entered the class.

They ……..(live) in Spain before they moved to London.

_____________________________
- Предмет:
  Английский язык
- Автор:
  schwartz
- 5 лет назад
- Ответов:
  
  2
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Почему у мошек плохая реакция,а у мух хорошая
- Предмет:
  Другие предметы
- Автор:
  marielacherry
- 5 лет назад
- Ответов:
  
  1
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ДАЮ 20 БАЛЛОВ

1. Между реагентами и названием продуктов реакции:
Реагенты:
1)CaCl2+K2CO3 - ...
2)SO2+NaOH - ...
3)NaOH+H2SO4 -...
4)K2CO3+HCl - ...
ПРОДУКТЫ РЕАКЦИЙ:
а)сульфат натрия + вода
б)хлорид калия+углекислый газ+вода
в)сульфит натрия+вода
4)хлорид калия+карбонат кальция

2.Напишите уравнения практически осуществляемых химических реакций в молекулярном и ионном виде.Укажите типы химических реакций.

1.Mg+HCl=
2.MgSO4+KOH=
3.Cu+HCl=
- Предмет:
  Химия
- Автор:
  aryan
- 5 лет назад
- Ответов:
  
  1
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Ребят быстро надо очень!!!!!!!!!!!!!!!!!
1 вариант
- Предмет:
  Алгебра
- Автор:
  odonnell
- 5 лет назад
- Ответов:
  
  6
- Смотреть

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