Предмет: Алгебра, автор: zannazomartovna

ите задачу: Моторная лодка прошла 54 км по течению реки и 42 км проти ния за то же время, что она проходит 96 км в стоячей воде. Найдите скорос в стоячей воде, если скорость течения реки равна 3км/ч.

Приложения:

Ответы

Автор ответа: hahaharlekin

Ответ : x - U в стоячей воде = 24 км/ч

Приложения:

zannazomartovna: там икс во втором или плюс?

hahaharlekin: x только под дробью

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СРОЧНО!!!ДАЮ 30 БАЛЛОВ!

1. There are many …. kinds of animals that could soon extinct. *

a) endangered
b) beautiful
c) interesting

2. Yaroslav the Wise used marriages of his children to strengthen … . *

a) popularity
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Прочитайте текст и выполните к нему задания. The Dead Sea*, the saltiest body of water of the Earth and a wonderful natural treasure, is becoming smaller and smaller because of decisions* by people to use part of its waters.The Dead Sea is located in the lowest point of the Earth, almost 400 metres below sea level. It is 50 kilometres long. Just 40 years ago it stretched 80 kilometres in length.One of the main reasons for the sea’s shrinking* is lack of water. 90 % of the waters that flow from the Jordan River, which traditionally goes into the Dead Sea, is taken for drinking and agriculture in Israel and Jordan. Besides, local industry adds to the Dead Sea’s problems. They use the water for getting necessary minerals. It’s a real disaster for the Sea. It can be saved – but time is running out. *The Dead Sea - Мертвое море; *decision - решение; *shrinking - уменьшение *

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