Предмет: Математика, автор: OldSchoolLove

Помогите решить:Велосипедист едет из пункта A в пункт B. За три пятых часа он проехал 18км. Найдите скорость велосипедиста.

А) 25км/ч
Б) 30км/ч
В)15км/ч
Г)20км/ч

Ответы

Автор ответа: xxxeol
0
РЕШЕНИЕ
V = S : t = 18 км : 3/5 = (18/3)*5 = 30 км/ч  - скорость - ОТВЕТ Б
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