Предмет: Математика, автор: Rip

Путешествие по Африки три седьмых всего намеченного пути проехали на верблюдах,семь двенадцатых оставшегося пути-на автомобиле ,а за тем на плоту спускались по реке.Какую часть всего пути заняло путешествие по реке? Сколько километров путешественники проплыли по реке,если весь их путь составил 588 км


Автор ответа: ya.lera

1). 3/7*588=252(км) - на верблюдах.

2).588-252=336(км) - осталось.

3). 1/12*336=28(км) - на автомобиле.

4). 336-28=308(км) - путешествие по реке.

Ответ: 308 км.

Интересные вопросы
Предмет: Биология, автор: Аноним
Предмет: Английский язык, автор: alionessa2020
I have a large family. My father is 57. He works as an engineer at a plant. My mother is 55. She works part-time as a nurse. My younger brother is a student of economics. He is going to graduate next year. I also have an older sister. She is married and lives with her family in an apartment house not far from us. They often visit us. Her daughter Lena, my niece, is a very talented girl. She plays the piano and writes interesting poems.

I am married. My wife Olga is a schoolteacher. She teaches mathematics. We have two children, a boy and a girl. My son Victor is six years old, and my daughter Anna is three years old. They go to a kindergarten near our house. My wife picks them up on her way home from work and takes a long walk with them in the park. My mother looks after the children when we work late, and my mother-in-law takes care of them on Saturdays.

We live in a large house with a nice garden. There is enough room for all of us, and I even have my own study in the attic. It is small, but I like it. There is a table with my computer on it, a chair, and a book shelf. I spend a lot of time there working with my papers and studying English.

We have a lot of relatives. My aunt and two uncles live in a small town about 60 kilometers from my hometown. Their children, my cousins, are about my age, and we communicate often. Every year the whole family gets together for Christmas. We prepare a huge Christmas dinner, and there are a lot of presents for everyone.

Choose true or false:

1. Lena plays the guitar and writes interesting poems.


2. The writer spends a lot of time there working with his/her papers and studying English.

3. The writer says that they have a lot of relatives.