Предмет: Математика, автор: kr1st1n4

Масса 15 одинаковых деталей составила 37,5кг. Какова масса 12 таких деталей?


Сева0606: пишите,какой класс?Пропорцией решить или по действиям.
kr1st1n4: 6 класс

Ответы

Автор ответа: mehrubonhasanzoda73
1

Ответ:

37,5=37500грамм

37500:15=2500грамм

2500*12=30 000грамм


mehrubonhasanzoda73: 90кг
Сева0606: неправильно
Сева0606: флажок не нажимаю никогда,исправь сам.Ты неправильно разделил 37500:15
mehrubonhasanzoda73: уффффф все надоели заходишь в один чат кто-то с кем-то ругается заходишь в другой тоже самое
Сева0606: Не ругаются,а дают возможность исправить.Мне,конечно,быстрее флажок нажать,как делают другие,но человек в течении 2 часов,по правилам сайта, может исправить свою ошибку.Просто кто-то зайдёт,перепишет с ошибкой и получит плохую оценку.
Сева0606: Молодец.Исправил и всё теперь на 5.
Автор ответа: Сева0606
1

Ответ:

масса 12 деталей 30 кг В первом файле решение для 3 класса,во втором для 6.

Пошаговое объяснение:

Приложения:

mehrubonhasanzoda73: или он
mehrubonhasanzoda73: без дробей ему или ей нужно
kr1st1n4: Я в 6классе
mehrubonhasanzoda73: ок
mehrubonhasanzoda73: но как я сделал легче и правильней
Сева0606: Если в 6,то пропорцией.Так,как у меня и было .Сейчас добавлю ещё файл.
kr1st1n4: Спс
Сева0606: и кто тут сказал,что он в 3 или 4 классе учится?Отвечайте за себя.
Сева0606: А-то сразу "неправильно".Кстати,"неправильно" пишется слитно.
Сева0606: Как ты сделал-это уровень 3 класса,а в 6 классе проходят тему пропорции,поэтому решают задачи не по действиям,как в начальной школе,а пропорцией.Поэтому для 6 класса твоё решение считается неправильным.А для младших классов правильным)
Похожие вопросы
Предмет: Английский язык, автор: renomegan
The family has always been very important in all times and societies. However, contemporary families differ a lot from large traditional families. A
traditional, or extended, family had a similar structure in different countries. It consisted of several generations and was headed by the eldest man in the family. For example, an ideal traditional Chinese family consisted of the head of the family and his wife, their three or four sons and their wives (the daughters didn`t live in the family as they moved to their husbands` families after the wedding) and a dozen grandchildren. People lived shorter lives then, and that`s why usually there were no more than three generations in a family.
Children were absolutely dependent on their parents and grandparents, and the status, role and behaviour of each member of the family were strictly regulated. Nobody could break the rules. The interests of the family were above the interests of an individual member. If anyone ignored or betrayed the family interests, they were punished very severely. Most traditional families in Russia, Ukraine, and Poland looked the same.
Nowadays families are much smaller. They often consist of two generations only: parents and their dependent children. The family of this kind is called a nuclear family. There are no male and female responsibilities within the family. This means that most women go to work and earn money, and men often help with cooking, washing and some other work round the house.
Children behave differently too. They are allowed to express their point of view and take part in decision-making on different family issues. Sometimes they can even ignore the senior generation`s recommendations or advice, which was absolutely impossible in traditional families. Children are more independent nowadays, and when they grow up, they often prefer to live apart from their parents. Having separate homes, however, doesn`t matter much as long as adult children care for their parents and remember to help them.

Write if these entences are true of false.
1. The author thinks that nowadays the family is much more important than it used to be in old times.
True
False
2. The author says that a traditional Chinese family consisted of five generations living together.
True
False
3. According to the article, parents in traditional families didn`t allow children to express their disagreement or argue in any way.
True
False
4. The article says that nowadays children can ignore the senior generation`s advice.
True
False
5. The author thinks that it`s very bad when generations don`t live in one place.
True
False
Предмет: Обществознание, автор: ekaterinasavin1
Предмет: Алгебра, автор: kavertonik1337