\[\boxed{\mathbf{Страница}\mathbf{\ 29}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\boxed{\mathbf{48}\mathbf{.}\mathbf{\ }}\]
\[S\] | \[48\ см²\] | \[48\ см²\] | \[48\ см²\] | \[48\ см²\] | \[48\ см²\] |
---|---|---|---|---|---|
\[a\ (см)\] | \[1\] | \[2\] | \[3\] | \[4\] | \[6\] |
\[b\ (см)\] | \[48\] | \[24\] | \[16\] | \[12\] | \[8\] |
\[P\ (см)\] | \[98\] | \[52\] | \[38\] | \[32\] | \[28\] |
\[\boxed{\mathbf{49}\mathbf{.}\mathbf{\ }}\]
\[1)\ 4 \cdot 3 = 12\ (кг) - масла\ \]
\[израсходовано\ за\ 3\ дня.\]
\[2)\ 36 - 12 = 24\ (кг) - масла\ \]
\[израсходовали\ за\ остальные\ \]
\[4\ дня.\]
\[3)\ 24\ :4 = 6\ (кг) - в\ день\ \]
\[масла\ расходовали\ последние\ \]
\[4\ дня.\]
\[Ответ:6\ кг\ в\ день.\]
\[\boxed{\mathbf{50}\mathbf{.}\mathbf{\ }}\]
\[600 - (320\ :4 + 9) =\]
\[= 600 - 89 = 511\]
\[(600 - 320)\ :4 + 9 = 70 + 9 =\]
\[= 79\]
\[300 + 270\ :(9 - 6) =\]
\[= 300 + 90 = 390\]
\[300 + (270\ :9) - 6 =\]
\[= 300 + 30 - 6 = 300 + 24 =\]
\[= 324\]
\[\boxed{\mathbf{51}\mathbf{.}\mathbf{\ }}\]
\[a\] | \[40\ см\] | \[70\ см\] | \[80\ см\] | \[70\ мм\] | \[8\ дм\] |
---|---|---|---|---|---|
\[b\] | \[30\ см\] | \[80\ см\] | \[20\ см\] | \[9\ мм\] | \[90\ дм\] |
\[S\] | \[1200\ см²\] | \[5600\ см^{2}\] | \[1600\ см^{2}\] | \[630\ мм^{2}\] | \[720\ дм^{2}\] |
\[P\] | \[140\ см\] | \[300\ см\] | \[200\ см\] | \[158\ мм\] | \[196\ дм\] |
\[\boxed{\mathbf{52}\mathbf{.}\mathbf{\ }}\]
\[39\ :14 = 2\ (ост.\ 11)\]
\[78\ :19 = 4\ (ост.\ 2)\]
\[40\ :13 = 3\ (ост.\ 1)\]
\[67\ :16 = 4\ (ост.\ 3)\]