Предмет: Математика, автор: vika671

1)Расскажите  как найти неизвестный множитель, неизвесный делитель, неизвесное делимое. 2) Найди известный компонент действия: а) 42*х=546  б) а:17=15  в) 54:с=3

Ответы

Автор ответа: Пряник8Б
0

а) 42*х=546

х=546:42

х=13

б)а:17=15

15*17=а

а=255

в) 54:с=3

с=54:3

с=18

Автор ответа: retvord
0
42*х=546      а/17=15              54/с=3
х=546/42       а=15*17             с= 54/3
х=13               а=255                   с=18
42*13=546      255/17=15        54/18=3
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