\[\boxed{\mathbf{672\ (672)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\text{v\ }\frac{км}{ч}\] | \[5\] | \[4\] | \[2,4\] | \[4,5\] | \[3\frac{3}{5}\] |
---|---|---|---|---|---|
\[t,\ ч\] | \[4,8\] | \[6\] | \[10\] | \[5\frac{1}{3}\] | \[6\frac{2}{3}\] |
\[24\ :4,5 = 240\ :45 = \frac{240}{45} =\]
\[= \frac{48}{9} = 5\frac{3}{9} = 5\frac{1}{3}\]
\[24\ :3\frac{3}{5} = 24\ :\frac{18}{5} = 24 \cdot \frac{5}{18} =\]
\[= \frac{4 \cdot 5}{3} = \frac{20}{3} = 6\frac{2}{3}\]