Предмет: Математика, автор: annalutsenko125

Допоможіть будь ласка

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Ответы

Автор ответа: iva54

Відповідь:

20 год

Покрокове пояснення:

1). 8 + 12 = 20 (км/год) швидкість зближення;

2). 400:20=20(год) вершники зустрілись через 20 годин.

Автор ответа: marickamalicka

Ответ:20 годин

Пошаговое объяснение:

1)8+12=20(км/год)-швидкість разом;

2)400:20=20(год)

Відповідь: вони зустрінуться через 20 годин.

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