Предмет: Математика, автор: найс19

з 2 пристаней одночасно назустріч один одному вирушили катер і моторний човен.Швидкість катера 36 км/год,а човна-у 2 рази менша.Вони зустрілися через 4 год.Яка відстань між пристанями?

Ответы

Автор ответа: Sailor11

скорость лодки в 2 раза меньше следовательно 36/2=18. Двигались они навстречу другу друга, а значит их скорости можно суммировать 36+18=54 км/ч А теперь просто умножаем 54 * 4 =216 км

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: zlata1304

10 диалетных слов и их лексическое значение

6 лет назад

Предмет: Английский язык, автор: saimanfox015

Помогите пж

1. I cannot fly, ...

cannot l?

am I?

can l?

am not l?

2.... juice in the bottle.

There is a

There is some

There are

There are some

3. We must do our homework every day, ...

do we?

do not we?

must we?

must not we?

4. My brother can draw a tiger, ...

cannot he?

can he?

cannot she?

can my brother?

sugar

in

my

There is not a

There is not some

There are not

There is not any

6. We are good pupils,...

are they?

are not they?

are we?

are not we?

7. ... ice-cream in my hand.

There is a

There is an

There are some

There is any

8. The children mustn't play on the road,...

must they?

must he?

must not they?

must not the children?

9... cake in the fridge.

There is

There are

There is a

There are some

10. The doctor is in the hospital, ...

is he?

does he?

isn't he?

does not he?

11. I... my homework now.

do

doing

15... eggs in the fridge.

There are

There are any

There is a

There is an

16. I am not a student, ...

am I?

are we?

do l?

don't l?

17. The pupils... sitting in the classroom.

is

are

do

will

18.... vegetables in the trolley.

There are not a

There is no

There are not

There is not any

19. The students... reading at this moment.

are

is

do

does

20. I am in the classroom now, ...

am I?

aren

do l?

do not l?

21. They play football every Sunday, ...

are they?

do they?

are not they?

do not they?

22. We... know her address.

don't

doesn't

aren't

isn't

23.... meat in the shop.

There is no

There is not some

There are no

There are not any

24. My parents ... not work every day.

are

is

do

does

6 лет назад

Предмет: Алгебра, автор: lollilollipop

Преобразование выражений, содержащих степени. Урок 1 Запиши частное в виде степени: 7–12 : 7–7. 7–19 75 719 7–5

6 лет назад

Предмет: Алгебра, автор: mothernet

Помогите решить 8.10
даю 50 баллов

10 лет назад

Предмет: Математика, автор: даша89615510422даша

Вставьте пропущенное число.
а) -9-...=11
9-...=-5
-9-...=5

10 лет назад