Предмет: Математика, автор: Аноним

решите систему уравнений {2x-3y=5 {5x-3y=11

Ответы

Автор ответа: матиматика0лицея
0
2х-3у+11=5+5х-3у
2х+11=5+5х
2х+6=5х
6=3х
х=2
4-3у=5
-3у=1
у= минус одна третья
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Предмет: Английский язык, автор: Аноним
Summative assessment #1 for the unit “Entertainment and Media”, grade 7, term 3

Reading. Task 1. Read the dialogue and and circle the right answer.
- Hi, Mum!
- Joe, you’re home late. It’s 4 o’clock.
- The bus was 15 minutes late. We only left at a quarter to 4.
- How was school today?
- Football practice was great. We used the sports hall because it was too wet to play on the school field or in the park.
- Do your football clothes need washing?
- My shorts are fine, but the t-shirt is dirty and the socks too.
- Give them to me then. Is your next match soon?
- Yes, it was on the 18th of March but I’ve changed it to the 15th. Oh, and I have to pay the teacher by the 12th.
- More money, I’ve already given you £4.50.
- That was just for the bus. I also want to get the photo of my team and that’s£2.25.
- OK, but that’s£6.75 for everything. It’s quite a lot.
- Not really, Mum. Anyhow, can I go and do my homework now?
- You’ve got History to do, haven’t you?
- I did that yesterday but I have to do Maths homework by tomorrow.
- What about Science?
- That’s OK, that’s next week.

1. Joe came home at…
a. a quarter to four b. a quarter past four c. four o’clock d. four fifteen
2. Joe came home later because…
a. it rained b. he was tired c. he want on foot d.the bus was not on time
3. Joe played football….
a. in the park b. in the sports hall c. on the school field d. in the backyard
4. They had football practice indoors because it was too …to play outside.
a. windy b.cold c. hot d. wet
5. Joe would like his mother to wash his
a. socks and shorts b. a t-shirt and shorts c. socks and t-shirt d. shorts only
6. Joe’s next football match is on the ….
a. 2nd of march b. 15th of March c. 12th of March d. 18th of March
7. Joe has to pay the teacher by the …
a. 20th of march b. 15th of March c. 12th of March d. 18th of March
8. The team photo will cost Joe…
a. 2.25 b. 4.50 c. 6.75 d. nothing
9. Joe doesn’t have to do his … homework as he did it yesterday.
a. science b. history c. maths d. P.E.
10. Joe must do his …. Homework by tomorrow.
a. science b. history c. maths d. nothing

Writing
Task 2. Write an email to English pen-friend about your favourite TVprogramme , film or series. (60 words). Follow the plan:
1. greet your friend, write the name of the TV programme , film or series, what it is about
2. Comment storyline, music, effects etc.
3. Your felling, closing remarks

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