Решебник по математике 6 класс Мерзляк ФГОС Задание 544

 

\[\boxed{\mathbf{544\ (544).}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ 0,29 + \frac{6}{25} = 0,29 + \frac{24}{100} =\]

\[= 0,29 + 0,24 = 0,53\]

\[2)\ 4\frac{5}{8} - 3,94 =\]

\[= 4\frac{5 \cdot 125}{8 \cdot 125} - 3,94 =\]

\[= 4\ \frac{625}{1000} - 3,94 =\]

\[= 4,625 - 3,94 = 0,685\]

\[3)\ 8,22 - 4\frac{7}{50} = 8,22 - 4\frac{14}{100} =\]

\[= 8,22 - 4,14 = 4,08\]

\[4)\ 15,63 + 1\frac{9}{16} =\]

\[= 15,63 + 1,5625 = 17,1925\]

\[\boxed{\mathbf{5}\mathbf{44}}\]

\[1)\ 12x = 7\]

\[x = 7\ :12\]

\[x = 0,58(3)\]

\[x \approx 0,58.\]

\[2)\ 5\ :x = 8\]

\[x = 5\ :8\]

\[x = 0,625\]

\[x \approx 0,63.\]

\[3)\ 7x = 16\]

\[x = 16\ :7\]

\[x = 2,2857\ldots\]

\[x \approx 2,29.\]

\[4)\ \frac{3}{8}x = 1\frac{9}{16}\]

\[x = \frac{25}{16}\ :\frac{3}{8}\]

\[x = 4,1(6)\]

\[x \approx 4,17.\]