[tex]6\frac{1}{2}\ mi\ in\ 2\ hour\\\\
16\frac{1}{4} mi\ in\ x\ hour\\\\
proportion:\\
6\frac{1}{2}-2\\
16\frac{1}{4}-x\\\\
cross\ multiplication\\\\
6\frac{1}{2}x=2*16\frac{1}{4}\\\\
5.5x=32.5\ \ \ | divide\ by\ 5.5\\\\
x=5.9hour\\\\
It\ will\ take\ 5.9\ hours[/tex]
