Respuesta :

Answer: [tex]\displaystyle \frac{12.075\, miles}{1 \frac{1}{6} \, hours}[/tex]

Step-by-step explanation:

       First, we will find out many miles he ran.

63,756 / 5,280 = 12.075 miles

      Now, we will find how many hours he ran for.

70 minutes / 60 = 1 \frac{1}{6}

    "Miles per hour" will mean miles "over" hours;

[tex]\displaystyle \frac{12.075\, miles}{1 \frac{1}{6} \, hours}[/tex]