Предмет: Математика, автор: 89069125020ru32

Из гнезда одновременно вылетели в противоположные стороны 2 птицы. Через 0,12 ч. между ними было 7.8 км. Скорость одной 32,8 км/ч. Найти скорость второй. Помогите, ОЧЕНЬ НАДОО!!!

Ответы

Автор ответа: MSSERG1998

1) 32,8*0,12=3,936 (км) - пролетела первая птица.
2) 7,8-3,936=3,864 (км) - пролетела вторая птица.
3) 3,864:0,12=32,2 (км/ч) - скорость второй птицы.
Ответ: 32,2 км/ч.

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