Предмет: Математика, автор: marinamar2467

Для в’язання узяли 3клубочки пряжі по 20м ниток та 5 клубочків по 15 м.Знайдіть середню довжину ниток в одному клубочку.

Ответы

Автор ответа: crypsik

Ответ:

16.875

Пошаговое объяснение:

Середнє арифмитичне рахуємо, як суму всіх значень поділену на їх кількість:

$\frac{3*20+5*15}{8}$ = $\frac{60+75}{8}$ = $\frac{135}{8}$ =16.875

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: ПолинаЗайка12

The festival of colors Holi ,можите пж написать как читается и перевод

1 год назад

Предмет: Английский язык, автор: Nastya898989

перевести текст
Young people choose different ways to express their identity.
Young people who dress in a shocking way to express their identity are PUNKS. They have brightly colored hair and wear metal chains. They are thought to rebel (protest) against the society or the older generation. Their music is aggressive.
HIPPIES don't conform (don't keep) to society's standards and support a liberal attitude and lifestyle. The good old times for most of hippies were the 1970-s. Some classify these people like drug users and rock and roll fans
HACKERS are the 'wizards' of the computer community.
RAVERS These are the folks who use computer-made, synthesized music, and drugs to create massive all-night dance parties. They want to try out all sort of options.
BIKERS are all persons who ride 2 or sometimes 3 wheeled motorized vehicles and who identify themselves with a particular (special) subculture. Some people consider bikers aggressive
Young people in Great Britain have an opportunity to join different organizations. SCOUTS are the members of one of the leading (in number) youth organizations in Britain. They are trained to use their initiative, learn to use practical skills. Their moral values are loyalty and responsibility.
The values of ENVIROMENTALISTS are to help nature, to change the world for the best.
SKINHEADS are extremely nationalistic. They are aggressive. They don’t conform to society standards. Chelseas are female skinheads.
The “Brotherhood” sponsors several fun and charity events annually.
The media often associates youth subcultures with something threatening and violent. People consider that young people only think about rebellion against society. More violence, more vandalism exists than it did ten years ago. Crime for teens is an expression of their inability to join in society. The bad image of youth groups is presented by the press. Is it a chance for teenagers to become good citizens?

1 год назад

Предмет: Английский язык, автор: Аноним

ПОМОГИТЕ Нужно прямо сейчас с энглишем тут легко прост я не успеваю
Очь прошу