Предмет: Математика, автор: aboltysina

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26. Смешали два раствора соленой воды.
Объем первого раствора - 200 мл,
концентрация - 20%, объем второго- 300 мл,
концентрация 10%. Найдите концентрацию
полученного раствора после смешения.

Ответы

Автор ответа: templeofhopes
0
Правильное решение…..
Приложения:
aboltysina: спасибо большое!
templeofhopes: не за что:)
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