Предмет: Физика, автор: valentinermijcuk86

Поможіть будь ласка
V1=11км/год
V2=9км/год
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Vсер.

Ответы

Автор ответа: bovsunovskijgabriel2
0

Ответ:

V1+V2=20

20: 2 =10 км/год

valentinermijcuk86: Треба знайти Vсер.
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