Предмет: Математика, автор: dffgryh

Из одного города в другой,расстояние между которыми меньше 300
км,выехал поезд .Через 3 ч ему осталось проехать ещё 45 км .Оцените
скорость поезда. решите с помощь линейного неравенства!!

Ответы

Автор ответа: gid73
70
3*х+45>300
3*х>300-45
3*х>255
x.>255:3
х>85
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