Предмет: Математика, автор: mishander99

На экзамене 25 билетов,Серёжа не выучил из них 3.Найдите вероятность того,что ему попадется выученный билет

Ответы

Автор ответа: MariaRo10

Всего 25 билетов - 100%
Не выученных 6 билетов Выученных 25-6=19 билетов (19/25)*100=76 - вероятность Ответ: 76% (или 19/25).

mamusichka: откуда 6 билетов невыученных взялось?

Автор ответа: mamusichka

нас учат так
25 всего
25-3=22 билета выученных
отношение 22 к 25 записываем в виде дроби 22/25, решаем= 0,88
Ответ:вероятность 0,88

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: polinka6661

ответьте на вопросы пж
только под буквой А

1 год назад

Предмет: Английский язык, автор: gbafujhobr

Переведите предложения на русский язык
1The more we work together, the more successful is our cooperation. 2. This brand of coffee is not so expensive as that one. 3. The lower is the price, the more you can buy. 4. Repairing cars is as profitable as selling them. 5. The more profits you get, the more you can invest into your business. 6. Our business is not as profitable as yours. 7. The earlier we get your order, the sooner you can receive the goods. 8. Today our prices are as lower, they were a month ago. 9. The sooner you come, the better. 10. Our prices are not so high as those of our competitors.11. The longer you stay in the hotel, the more you pay. 12. John knows Russian as well as English.

1 год назад

Предмет: Английский язык, автор: yulechkakovalo

Заполните «a / an» или «the», если необходимо.
1. .......... Tower of London is on .......... north side of .......... Thames.
2. He has visited a number of places including .......... USA, .......... Middle East and .......... Asia.
3. .......... University of Cambridgeis one of .......... most famous in ........... United Kingdom if not in .......... Europe.
4. He took .......... job with .......... government because he is interested in .......... politics.
5. New Year celebrations are held in .......... Trafalgar Square in .......... London and in .......... Times Square in .......... New York.
6. .......... month I spent in .......... France was one of .......... best times in my life
7. After six months in .......... hospital my grandmother is coming .......... home.
8. .......... Sunset Boulevard is .......... most famous street in .......... Hollywood.
9. .......... millionaire purchased .......... a famous painting as .......... gift for his daughter's birthday.
10. .......... Nile flows from near .......... Lake Victoria to .......... Mediterranean.
11. She goes to .......... church every Sunday, and also goes to .......... church every Friday to help with the cleaning.
12. My perfect day in London would include shopping at .......... Harrods, eating at .......... Pierrot's and going to .......... opera at .......... Covent Garden.
13. .......... Mount Everest is in .......... Himalayas.
14. .......... Falklands are islands in .......... South of .......... Atlantic Ocean.
15. He came into .......... antique gold watch when his father passed away.
16. When I visit .......... Netherlands I always stay at .......... Park Hotel in .......... Amsterdam.
17. Tom teaches at .......... university near his home.
18. .......... van crashed into .......... back of my car in .......... Green Street yesterday.
19. Of .......... Seven Wonders of the World, I have only visited .......... Pyramids.

1 год назад

Предмет: Математика, автор: nikitos202037

Если сумму чисел 23 и 17 увеличить в 2 раза получится 800 + или -?

7 лет назад

Предмет: Английский язык, автор: maks56757

какие вопросы можно задать: Do they surf in Australia every year? She bought a new dress two days ago.

7 лет назад