Предмет: Математика, автор: mr20171

Ракета проплыла расстояние 392 км за 4 часа после чего ей осталось проплыть 210 км. За какое время ракета проплывет оставшиеся расстояние если увеличит скорость на 7 км/с?

Ответы

Автор ответа: Nekepeshy

1) 392:4＝98-км/с скорость ракеты
2) 98+7＝105-км/с скорость +7 км
3)210:105＝2 секунды
Ответ: за 2 секунды ракета проплывет оставшееся расстояние.

Автор ответа: Angelakazarova2007

1)392:4=98(км/с)
2)98+7=105(км/с)
3)210:105=2(ч)

Автор ответа: Angelakazarova2007

Ой ошиблась 2(с)

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: mishail160309laptov

Task 1.Match three texts with the appropriate titles. One of the titles is extra.

1) The best school

2) My school football team

3) School rules

4) My favorite lesson

Today it is a wonderful day. I went to school and had only four lessons. They were English, Physics, Technology and Maths. The most interesting lesson was English. We acted out the dialogues during the lessons and answered the teacher’s questions. I like the lessons of English very much. Even if we have any difficulties our teacher tries to help us. I went home after all the lessons and was in a good mood.

Our school is not a usual one. It is situated in a small town, in England. Our parents pay a lot of money for studying. It was opened a hundred years ago. There are two hundred pupils at school. There is also a museum at our school. Many pupils from other schools visit our school museum and find out much information about our town. There are about ten pupils at our school who are from other countries. I am proud that I am a pupil of this school.

The teachers of our school are very strict. They always make us follow the rules. We should always wear a school uniform, keep our classroom clean and tidy. As for me, I am polite with my classmates and teachers. I try not to bring dangerous things to school. But some of my classmates are not so calm. They run in school corridors, bully other pupils in any way. I don’t like it. I think that rules are very important at school.

Task 2.Your pen-friend John wrote a letter to you. In his letter he asks you to tell him about your school and answer three his questions.

-What form are you in?

-What are your favorite subjects at school?

-What rules are there at your school?
Даю 30 баллов

5 лет назад

Предмет: Английский язык, автор: mobil355dg

According to the speaker A she to huy 11 pairs of jeans B. she has got 32 sweaters C. she has never forgotten her new clothes 2. According to the speaker A she should buy many new brand clothes B. she likes tell us about her pair of shoes C. she'd be millionaire if didn't buy so many clothes 3. According to the speaker A. she wants to give her clothes for charity B. so many elothes are bought very cheap C she hates clothes and brands

ПОМОГИТЕ ПОЖАЛУЙСТА

5 лет назад

Предмет: Геометрия, автор: klymenkos

Дано трикутник АВС площина паралельна прямій ВС перетинає сторону АВ в точці Р а сторону АС в точці Q. Точка Р ділить відрізок АВ у відношенні 3:5 рахуючи від точки А. Знайдіть довжину відрізка РQ якщо ВС=12дм

5 лет назад

Предмет: Математика, автор: ннфрцпцопщааафв

Выполните сложение смешанных чисел. 2/9+1целая 8/15. 1/14+9целых 3/7

9 лет назад

Предмет: Алгебра, автор: sashacom13

помогите решить задание!

9 лет назад