Решебник по математике 5 класс Мерзляк ФГОС Задание 1389

\[\boxed{\ \mathbf{971\ (971)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]

\(1)\ x \cdot 13 = 13,26\)

\[x = 13,26\ :13\]

\[x = 1,02\]

\[Ответ:1,02.\]

\[2)\ 64,6\ :x = 17\]

\[x = 64,6\ :17\]

\[x = 3,8\]

\[Ответ:3,8.\]

\[3)\ x\ :14,5 = 4,6\]

\[x = 14,5 \cdot 14,6\]

\[x = 66,7\]

\[Ответ:66,7.\]

\[4)\ 9,728x + 7,272x = 4,08\]

\[17x = 4,08\]

\[x = 4,08\ :17\]

\[x = 0,24\]

\[Ответ:0,24.\]

\[5)\ 38,6x - 16,6x = 14,74\]

\[22x = 14,74\]

\[x = 14,74\ :22\]

\[x = 0,67\]

\[Ответ:0,67.\]

\[6)\ 1,2x + 4,6x - 2,8x = 0,15\]

\[3x = 0,15\]

\[x = 0,15\ :3\]

\[x = 0,05\]

\[Ответ:0,05.\]