Предмет: Математика, автор: studytosuccess

б)3/4•2/9=. а)3целых3/4•1целую 7/9= в)7/5•5целых 2/5= 2.Выполните действия: (9целых-2целых2/15•3целые1/8)•9/14=(этот пример по действиям) 3.Задача Элект.,автоб.,катер-150 км. _ Элект.-50% из_______| Автоб.-2/3 из|(Ост.) Ост.-? Решение . . . . . . . .

Ответы

Автор ответа: amirchikxxl003

Ответ:

а) 2 ¹¹/¹² в)2 ⅘ 2.5 19/70 3. Катер-100%

Элект-50% от катера= 100% ÷ 2= 150÷2=75

Автомобиль-⅔ от элект=75:3=25 км/ч

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: ЛюЦиФеР666000

1 год назад

Предмет: Русский язык, автор: Ivko0637

Как пишется
Пока ему нравится,или пока ему нравиться?

1 год назад

Предмет: Английский язык, автор: DAIks1eradai1

Помогите пожалуйста.
Вставить в пропуски слова из текста.
Education is provided by _____ schools and _________ schoolsState schools are ________If pupils go a public or private school, parents ________Compulsory education means that all children ________Kindergartens and nursery classes are ______________ and _______ provide secondary educationThere are no _______ in comprehensive schools.If pupils want to enter a grammar school, they _________Pupil take _______ at the end of each 4 stages of education.In England about 93 per cent of children attend state schools,which provide free education.The other 7 per cent attend independet school-private and public schools.Some of these schools are boarding schools where children live and study.If parents want to send their children to a private or a public school,they have to pay for their education.The most famous public schools are Eton,*Harrow* and Winchester.*-For small children,there are state kindergartens,private kindergartens and Детский сад classes*in schools,which are optional.-Secondary education is compulsory .It means all children must attend school between the ages 5 and 16.Most children start their education at the age of 5.Primary school may be divided into two parts: during the first two years reading,writing and arithmetic are taught for about 20 minutes a day.There is usually no written timetable.Much time is spent in modelling from clay or drawing ,reading and singing.In Year 3 the *real work* starts .The children have lesson in arithmetic,reading and composition.History,Geography,Nature Study,Art and Music,PE,Swimming are also in the timetable.All schools follow the same National Curriculum.*The children attend the primary school for 6 years.-Comprehensive schools provide compulsory education for children between the ages of 11 and 16.Comprehensive schools affer 5-year courses to all pupils; there are no entrance examinations there.Some children enter grammar school which also provide secondary education.If a pupil wants to study at a grammar school,he or she has to pass the 11+ exams.There are 10 subjects,which all children must study at secondary school,and there are some optional subjects that are different in different schools.The whole period of compulsory education is divided into four stages.At the end of each(Years 2,6,9 and 11) pupils national examinations.

1 год назад

Предмет: Геометрия, автор: limonchik1621

верно, что сумма углов палаллелограмма прилежащих к одной стороне равна 180?

7 лет назад

Предмет: Қазақ тiлi, автор: omarova9393

Қазақ тілі 4сынп 25жаттығу 20бет

7 лет назад