Предмет: Алгебра, автор: yurchenkoilya1

Решение системы
x-y=4
x+y=2

Аноним: x-y=4x+y=2

Ответы

Автор ответа: manyny06
1

Ответ:

решение смотри на фотографии

Приложения:
Аноним: 8-4=4
1+1=2
Автор ответа: spiridonovmaxim
0

Линейная система уравнений с двумя неизвестными переменными.

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Test. The Present Continuous



1. Fill in am, is, are.



1 .John … not a student. 2 .I … glad to see you. 3. How old … you? 4 .How old … your brother? 5. Tom and Bob … pupils. 6. That book … thin.7. The men … in the garden. 8. They … English. 9 … we Russian? 10. The women … young.11.The rooms … clean. 12. … it cold today? 13. The children … ten years old.



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open run ski

put walk swim

close jump play

copy skate speak



3. Choose the sentences in the Present Continuous.



1. Reading books is my hobby.

2. I like reading.

3. He is reading now.

4. Are you writing now?

5. She is a teacher.



4. Form all types of questions.



1. We are writing a test now.

2. They are reading a book now.



5. Correct the mistakes.



1. Who are playing chess now?

2. I am sittin, amn't I?

3 .He isn't not reading.

4 .Sasha and Vova is writing a test.

5 We are planing a trip.

6 .Where you are going?

7 The men is coming here

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Test. The Present Continuous



1. Add -ing to the verbs.



turn shut get draw clean

speak give come have open

write touch put point play

stop go show look take



2. Fill in am, is, are.



1. You … standing at the blackboard. 2. The pupils … speaking English. 3. I … opening the window. 4. Where … the father and the son sitting? 5. My mother … coming home. 6. … he watching TV now? 7. Who … touching the book? 8. We … reading an English text. 9. Where … they sitting? 10. … the woman washing her stockings or her dress? 11. … it raining now? 12. They … going to school. 13. What … she putting in her bag? 14 .The men … sitting in the yard. 15. … the children dressing?



3. Make the sentences negative and interrogative.



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