Решебник по математике 5 класс Мерзляк ФГОС Задание 1021

\[\boxed{\mathbf{1021\ (1021)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ 2,88\ :0,36 = 288\ :36 =\]

\[= 8 - сумма.\]

\[2)\ 8 - 2,88 = 5,12 - второе\ \]

\[слагаемое.\]

\[Ответ:\ \ 5,12.\]

\[\boxed{\mathbf{1021}\mathbf{.}\mathbf{\ }}\]

\[1)\ x + 7\frac{4}{15} = 9\frac{7}{10}\text{\ \ \ \ \ }\]

\[x = 9\frac{7^{\backslash 3}}{10} - 7\frac{4^{\backslash 2}}{15} = 9\frac{21}{30} - 7\frac{8}{30}\]

\[x = 2\frac{13}{30}\]

\[Ответ:2\frac{13}{30}.\]

\[2)\ 8\frac{9}{14} - x = 4\frac{3}{7}\text{\ \ \ \ \ \ }\]

\[x = 8\frac{9}{14} - 4\frac{3^{\backslash 2}}{7} = 8\frac{9}{14} - 4\frac{6}{14}\]

\[x = 4\frac{3}{14}\]

\[Ответ:4\frac{3}{14}.\]

\[3)\ x - 3\frac{8}{9} = 5\frac{1}{12}\text{\ \ \ \ \ }\]

\[x = 5\frac{1^{\backslash 3}}{12} + 3\frac{8^{\backslash 4}}{9} = 5\frac{3}{36} + 3\ \frac{32}{36}\]

\[x = 8\frac{35}{36}\]

\[Ответ:8\frac{35}{36}.\]