Предмет: Математика, автор: Аноним

692. Навігатор показує, що пішоходу до
місця призначення залишилося пройти
1200 м, а шлях займе 24 хв. Як зміниться
час руху, якщо пішохід збільшить свою
швидкість на 10 м/хв?
Пж помогите нужно сегодня

Ответы

Автор ответа: beyonddeduction

Ответ:

1) 1200 : 24 = 50 (м/хв) – початкова швидкість.

2) 50 + 10 = 60 (м/хв) – збільшена швидкість.

3) 1200 : 60 = 20 (хв) – час руху, коли збільшилася швидкості.

4) 24 – 20 = 4 (хв) – на стільки зменшиться час руху, коли збільшилася швидкість.

Відповідь: зменшиться на 4 хв.

radomirbab: Ок

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