Предмет: Математика, автор: SchoolLife0

ОЧЕНЬ НУЖНО РЕШИТЬ ПРИМЕР С ДРОБЯМИ: (1 14 +2 21)×(5 целые 1 2 -2 целые 1 14)

Ответы

Автор ответа: пороро24

держи, на фотке вообще всё решение) надеюсь понятно где чё:)

Приложения:

Автор ответа: aliyagasanova1

1)1/14+2/21=7/42=1/6
2)5 1/2-2 1/14= 11/2-29/14=48/14/24/7
3)1/6*24/7=4/7

Приложения:

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Алгебра, автор: averagesniper511

В двух баках -140 литров воды . Когда из первого бака взяли 26л, а из второго 60л воды, то в первом баке осталось в 2 раза больше воды, чем во втором. Сколько литров воды было в каждом баке первоначально.

6 лет назад

Предмет: Алгебра, автор: voskresenskaaevelina

5. Знайти Ѕзо, якщо a = -2; d = 3
а) 1365; б) 1245; В) 2315 г) ін. відпов.

6 лет назад

Предмет: Английский язык, автор: davidtroyanov

Make up a plan of the text and retell the text using your plan.
Вот текст:The role of technical progress
The scientific and technical revolution has changed our life very much. The computers, the mobile phones and other digital devices have entered our everyday life.
The atomic, space and energy age was followed by the age of computers. The tasks which had seemed eternal before have been solved one by one by computers. During the last decade many fundamental changes occurred because of electronic devices. It is even difficult to imagine the social and economic consequences of the microelectronic revolution.
The large use of computers has influenced our life in such a way that it was difficult to imagine 15 or 20 years ago. On the one hand, computers have simplified our life greatly. If you typed a text on the typewriter and made a mistake you had to type the whole page again. Making several copies of the same document used to be a difficult job too. But now it’s quite different. Correcting mistakes is easy. Computer also helps us to buy goods, find information, book tickets, make presentations and annual reports, and make difficult calculations. Time is saved for leisure.
Leisure time is also influenced by computer and other periphery devices. You no longer go to the music shops — many things are available on the internet. You needn’t write letters to your relatives or friends — you can send an e-mail. And your photo albums are on computer too.
Computer games are probably also a part of your free time. They became more and more realistic and complicated, and for many people it becomes impossible to tear themselves away. This means that electronic devices, such as computer and TV set are used mostly for entertainment and consume most of the time that could be spent on work, going for a walk and sleeping. Man becomes a slave of the devices which were designed to make him stronger.
Is there a way out? In fact, there is, but many people don’t know it and are still slaves. The best decision is not to give these equipments place in your heart. They should do their work. And when you have a rest, prefer real communication to virtual one and living an active life to watching films about crime. Then electronics will be not our lord or enemy but our friend!

6 лет назад

Предмет: Математика, автор: VitaKarelina89

кассах кинотеатра на дневной сеанс продано 53 билета по цене 100 рублей, 48 билетов по цене 200 рублей и некоторое количество билетов по цене 280 рублей. Сколько продано билетов по 280 рублей, если общая выручка за все проданные билеты составила 32540 рублей?

9 лет назад

Предмет: Химия, автор: kristicos51

Пожалуйста помогите очень срочно надо. При смешении водорода с азотом образуется аммиак объем 3.8 литра. Определите объем водорода вступившего в реакцию.

9 лет назад