Предмет: Математика, автор: dikijgavriil43

обчисли а) 2\11+9/11 б)5\37+12\37+3\37 в)7\50+17\ тільки перше завдання ок!!!

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Ответы

Автор ответа: karnaval1226p
1

Відповідь:

  • а)2/11+9/11=11/11=1;
  • б)5/37+12/37+3/37=20/37;
  • в)7/50+17/50+14/50=38/50

Покрокове пояснення:

  • вот правильний ответ
  • отметь пж мой ответ как лучший

karnaval1226p: сто процентов правильно
Автор ответа: evapalyvoda
0
Билин я нечяянно поставила не то фото и оно не убираетьса(
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1. People … their lives worrying about money.


A) are spending;


B) spend;


C) have spent.


2. Every day Johnny … to a street corner and … for the school bus.


A) walks ... waits;


B) is walking ... waits;


C) walks ... is waiting.


3. Fiona never buys expensive clothes, …?


A) does Fiona;


B) doesn't she;


C) does she.


4. Who … Phil with his homework?


A) does help;


B) helps;


C) do help.


5. The conference … on the 1st February.


A) is opening;


B) does open;


C) opens.


6. Jill …. long brown hair and big blue eyes.


A) is having;


B) has;


C) have.


7. I … what you're talking about.


A) don't understand;


B) am not understanding;


С) does not understand.


8. It … at the moment.


A) doesn’t rain;


B) don’t rain;


C) isn't raining.


9. I … from St. Petersburg, though I … in Moscow at the moment.


A) have come live;


B) am coming … am living;


C) come ... am living.


10. We … each other since our childhood.


A) have known;


B) have been knowing;


C) know.


11. They … meat at the market.


A) are always buying;


B) always buy;


C) have always been buying.


12. How … his new job?


A) is your brother liking;


B) does your brother like;


C) has your brother liked.


13. “What … of it?” – “In my opinion, it's not a very good idea.”


A) do you think;


B) are you thinking;


C) have you thought.


14. She …English since September.


A) is studying;


B) has been studying;


C)studies.


15. What time … lunch?


A) have you usually had;


B) do you usually have;


C) are you usually having.


16. Anna is here. She …


A) has just come;


B) just came;


C) is just coming.


17. Look! Ann … a letter.


A) writes;


B) are writing;


C) is writing.


18. How many books have you read …?


last year;


this year;


in 2000.


19. “Where's your sister?” — “She … a bath.”


A) has;


B) is having;


C) has been having.


20. … playing football, don't you?


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B) You like;


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