Предмет: Алгебра, автор: lolkek222312

найдите неизвестный член пропорции: х/4=49,5/66

Ответы

Автор ответа: ElKarver

х/4=49,5/66
Используем основное свойство
66х=4*49,5
66х=198
х=198/66
х=3

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