ГДЗ по алгебре 8 класс Макарычев Задание 180

\[\boxed{\text{180\ (180).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[y = \frac{120}{x}\ \]

\[1)\ \frac{120}{- 1200} = - \frac{1}{10} = - 0,1\]

\[2)\ \frac{120}{- 600} = - \frac{1}{5} = - 0,2\]

\[3)\ - 0,5 = \frac{120}{x}\]

\[x = \frac{120}{- 0,5} = - 120\ :\frac{1}{2} = - 240\]

\[4)\ - 1 = \frac{120}{x}\]

\[x = - \frac{120}{1} = - 120\]

\[5)\ \frac{120}{75} = \frac{24}{15} = \frac{8}{5} = \frac{16}{10} = 1,6\]

\[6)\ 0,4 = \frac{120}{x}\]

\[x = \frac{120}{0,4} = \frac{1200}{4} = 300.\]

\[7)\ \ \frac{120}{1000} = 0,12.\]