ГДЗ по математике 6 класс Ерина Виленкин рабочая тетрадь Часть 1, 2 Часть 1 | Страница 108

\[Страница\ 108.\]

\[\boxed{\mathbf{11.}}\]

\[\textbf{а)}\ x\ :1\frac{1}{3} = 1\frac{1}{3}\]

\[x = 1\frac{1}{3} \cdot 1\frac{1}{3}\]

\[x = \frac{4}{3} \cdot \frac{4}{3} = \frac{16}{9}\]

\[x = 1\frac{7}{9}\]

\[Ответ:1\frac{7}{9}.\]

\[\textbf{б)}\ 0,2x\ :50 = 0,06\]

\[x = \frac{0,06 \cdot 50}{0,2}\]

\[x = \frac{3}{0,2} = \frac{30}{2}\]

\[x = 15\ \]

\[Ответ:15.\]

\[\textbf{в)}\ 0,047\ :x = 0,5\]

\[x = \frac{0,047}{0,5} = \frac{47}{500} = \frac{94}{1000}\]

\[x = 0,094\]

\[Ответ:0,094.\]

\[\textbf{г)}\ 1,75\ :\frac{5}{6}x = 1,8\]

\[\frac{5}{6}x = \frac{1,75}{1,8}\]

\[x = \frac{175 \cdot 6}{180 \cdot 5}\]

\[x = \frac{35}{30} = \frac{7}{6}\]

\[Ответ:\frac{7}{6}\]

\[\boxed{\mathbf{12.}}\]

\[\textbf{а)}\ (36 - 4)\ :(12 - 4) =\]

\[= 32\ :8 = 4\ :1\]

\[Ответ:4\ к\ 1.\]

\[\textbf{б)}\ (36 - 10)\ :(12 - 10) =\]

\[= 26\ :2 = 13\ :1\]

\[Ответ:13\ к\ 1.\]