Предмет: Математика, автор: Аноним

Я могу составить уравнение по задаче на движение двух объектов. Реши задачу уравнением. На старте скорость первого бегуна 4 м/с, а второго - 2 ml Через какое время расстояние между бегунами будет 80 мет- ров?
только пояснительную записку
осталось 2 минуты

Ответы

Автор ответа: tiffanikotik536

2

Ответ:

40

Пошаговое объяснение:

Пусть Х будет время

(4×Х)-(2×Х)=80

4Х-2Х=80

2Х=80

Х=80:2

Х=40

Автор ответа: iramazurk

1

Ответ:

Пошаговое объяснение:
80 : (4 - 2) = х
80 : 2 = х
40 = х
-х = -40
х = 40

Ответ: через 40 секунд

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