[tex]1\ hour\ 15\ minutes=1,25\ hours \\
\frac{3}{4}miles= 0,75\ miles\\\\ 0,75\ miles\ in\ 1,25\ hours\\
x\ miles\ in\ 1\ hour\\\\making\ proportion\\
0,75-1,25\\
x-1\\\\cross\ multiplication\\\\
0,75=1,25x\ \ \ | divide\ by\ 1,25\\\\
x=0,6\\\\
In\ 1\ hour\ Ammar\ hikes\ 0,6\ miles.[/tex]
