Предмет: Математика, автор: Аноним

Автомобиль, увеличивая ежечасно свою скорость на 10 км/ч, проехала 6 часов путь 450 км.Какова скорость в (км/ч) этого автомобиля в течение последнего часа?
Решите как систему уравнений
СРОЧНО

Ответы

Автор ответа: iosiffinikov

Ответ:

100 км/ч

Пошаговое объяснение:

Пусть искомая скорость Х.

Составляем уравнение:

Х+(Х-10)+(Х-20)+(Х-30)+(Х-40)+(Х-50)=450

6Х-150=450

6Х=600

Х=100 км/ч

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