\[\boxed{\mathbf{563\ (563).}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 36,8\ :7 = 5,257\ldots \approx 5,3\]
\[2)\ 24,16\ :11 = 2,19(63) \approx 2,2\]
\[3)\ 29\ :6 = 4,8(3) \approx 4,83\]
\[4)\ 5\ :13 = 0,3846\ldots \approx 0,38\]
\[5)\ 2\ :3 = 0,(6) \approx 0,667\]
\[6)\ 26,7\ :14 = 1,90(714285) \approx\]
\[\approx 1,91\]
\[7)\ 52\ :15 = 3,4(6) \approx 3,467\]
\[8)\ 10\ :17 = 0,(58823) \approx\]
\[\approx 0,5882\]
\[\boxed{\mathbf{563.}\mathbf{\ }}\]
\[\frac{30 \cdot 30,2 + 20 \cdot 32,3}{30 + 20} =\]
\[= \frac{906 + 646}{50} = \frac{1552}{50} =\]
\[= 31,04\ \left( \frac{ц}{га} \right) - средний\]
\[урожай\ пшеницы.\]
\[Ответ:\ 31,04\ \frac{ц}{га}.\]