Предмет: Математика, автор: bika1760

Найдите значение выражения
Срочно!!!!!!!!
Помагите!!! Прошу!!!!!

Приложения:

Ответы

Автор ответа: prettypushkova
0

(2 12/35 : 4/5 - 1 8/35) : 0,3 = 5 2/3

1) 2 12/35 : 4/5 = 82/35 · 5/4 = (41·1)/(7·2) = 41/14 = 2 13/14

2) 2 13/14 - 1 8/35 = 2 65/70 - 1 16/70 = 1 49/70 = 1 7/10 = 1,7

3) 1,7 : 0,3 = 17/3 = 5 2/3

Ответ: 5 целых 2/3.

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: maya3643

Дам 20 балов!!!
Анг мова!!!!!
5 лет назад
Предмет: Английский язык, автор: LuBLaRRa
1. The documents _____ by yesterday.
A have been signed C had been signed
B will sign D signed
2. 'What's happened to the old mail carrier?' 'He _____ to a new neighborhood to work last week.'
A has sent C was sent
B had been sent D sent
3. I don't want _____ out tonight. I'm too tired.
A going C to have gone
B to go D gone
4. The lesson _____ when I arrived.
A has already started C had already started
B started D had already been started
5. Many valuable paintings _____ by the fire last evening.
A are destroyed C were destroyed
B had been destroyed D have been destroyed
6. The new theater _____ in my street now.
A is building C had been built
B has been built D is being built
7. Gold _____ in California in the 19th century.
A was discovered C had discovered
B has been discovered D discovered
8. They _____ in a sport competition this week.
A had taken part C have been taking part
B have taken part D took part
9. How long _____ English so far?
A have you learnt C are you learning
B have you been learning D did you learn
10. He used to talk to us for hours about all the interesting things he _____ in his life.
A had been doing C has done
B was done D has been done
11. 'Who does the washing-up in your house? – 'The dishes _____ by my brother and then they _____ by my sister.'
A are washed, are dried C washed, dried
B were washed, were dried D wash, dry
12. 'Why can't I use your car?' 'Because it _____ at the moment.'
A is serviced C is servicing
B was serviced D is being serviced
13. The meeting _____ at 5 o'clock yesterday.
A began C had begun
B has begun D was beginning
14. 'So, when did they tell you about the robbery?' 'I _____ by the police after they had found it out.'
A informed C am informed
B have been informed D was informed
15. 'Why can't we go over the bridge?' 'Because it _____ at the moment.'
A is being repaired C is repairing
B was repaired D has been repaired
16. 'Who looks after your baby when you're at work?' 'He _____ after by my mother.
A is looked C is being looked
B was looked D looks
17. 'What will happen to the criminals?' 'They _____ for their crimes.'
A will punish C were punished
B will be punished D will have punished
18. 'Have you ever appeared on TV?' 'Actually, I _____ to take part in a show last month.'
A will be asked C was asked
B asked D have been asked
19. 'When will I have my car serviced? ' 'It _____ to your house the day after tomorrow.
A will deliver C will have been delivered
B will be delivered D will have delivered
20. 'When did you post the letters?' - 'They _____ by Wednesday.'
A had been posted C have been posted
B were posted D had posted
21. The house _____ magnificent. It _____ by the owners.
A is looking, is renovated C is looking, was renovated
B looks, had been renovated D looks, has been renovated
22. A key invention _____ the steam engine. It _____ in the 18th century.
A was, was developed C has been, has developed
B is, is developed D was, developed
23. This problem ___ at 3 o’clock yesterday.
A. was discussed C. was being discussed
B. discussed D. was discussing
24. This problem ___ in detail now.
A. is considered C. is being considered
B. has been considered D. is considering
25. _____ given delicious food at the party yesterday?
A. Were you C. Have you
B. Will you be D. Have you been
5 лет назад
Предмет: Українська мова, автор: kkovel81
Поставити розділові знаки та записати в дужках чому поставили або не поставили розділовий знак в реченні:
У снігу по коліно стоїть з хати винесена ялинка ​
5 лет назад
Предмет: История, автор: копия1
Как вы понимаете слова Горького Александра Сергеевича Пушкина он у нас Начало всех начал слова Гоголя пушкин это явление...
8 лет назад
Предмет: Алгебра, автор: 4РИМ
Найти производную функции:
(4-3x)^7
8 лет назад