Предмет: Математика, автор: тимур685

привет помогите плизз с задачей

Приложения:

Ответы

Автор ответа: supersuperkirip54irs

Пусть x - ск-сть катера, y - ск-сть течения реки.
x+y = 18,2 и x-y = 12,6
Сложим эти уравнения, получим:
2x = 30,8 => x = 15,4 км/ч.
23,1/15,4 = 1,5 ч.
Ответ: 1,5 ч.

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: География, автор: milana201096

Сторона наклона северной Америки? Помогите!

6 лет назад

Предмет: Алгебра, автор: aroslabelikov471

У дорожки стоит столб. Улитки Фрося, Муся и Кузя одновременно поползли от основания столба с постоянными скоростями. Фрося --- направо по дорожке, Муся --- налево по дорожке, а Кузя --- вверх по столбу. Скорость улитки Кузи на 2 см в минуту меньше скорости улитки Фроси, а скорость улитки Муси вдвое больше скорости улитки Кузи. Через час между Мусей и Фросей было 6 м 60 см. На какую высоту за этот час заполз Кузя?

Ответ выразите в сантиметрах.

6 лет назад

Предмет: Английский язык, автор: rerreg

ПОМОГИТЕ С АНГЛИЙСКИМ!!! СРОЧНО!!!
_______________________________________________________
BAPИAHT 2

I Прочитайте тексты (1-5), установите соответствия между ними и заголовками (а-f) отметьте каждый текст соответствующей буквой. В списке имеется один лишний заголовок.

a) Author Who Enriched the Language

b) Stories He Wrote

c) Character Creating Wonderful Things

d) Story Meant to Teach a Moral Lesson

e) Folklore Characters

f) Not Educated to Be an Author

1. One of Aesop's fables tells of a fox who wanted some beautiful, sweet-smelling grapes. The fox tried to get the grapes, but they were just a bit higher than he could reach. When the fox realized that he couldn't reach the grapes, he walked away. As he left, he told himself that the grapes were probably sour and that he really didn't want them.

2. Stephen Leacock was born in England but moved with his parents to Canada, where he lived for the rest of his life - except for a brief period during which he attended the University of Chicago and received a Ph. D in economies and political science. Anyhow, he is best remembered for his satirical and humorous writing.

3. Trolls have got bulging eyes, long mega-powerful arms, swollen noses and are covered all over in earth. They walk around with their mouths open. During the daytime they stay in their caves, but in the evenings they love to go out hunting people. At one time there were lots of them in Norway.

4. William Shakespeare gave his mother tongue many phrases and sayings, which English speakers still use every day. Often they do not realize these words come from Shakespeare's plays or poems. Since those times, English has continued to change. Settlers from Britain moved across the world taking their language with them.

5. The tale "The Stone Flower' was published in 1937. The hero of the tale is Danila, a young man, who became a real artist. He was sent to a master, who taught him to work with ornamental stones, especially with malachite. Danila learned very quickly and easily and soon he was able to make truly fantastic things. Once he was ordered to make a malachite bowl.

6 лет назад

Предмет: Математика, автор: perizat07com

Число состаящее из 10 десятков и 8 единиц, умножь на 2 и результат уменьши на 2.

9 лет назад

Предмет: Литература, автор: 2005Эльдар2005

написать рассказ "Мой друг Электроник"

9 лет назад