Answer: They will hike exactly 16 miles each day for 4 days.
Step-by-step explanation:
Given: Total distance to hike = 72 miles
They hike 16 miles per day.
Total days they will take to complete the distance = [tex]\dfrac{\text{Total distance to hike}}{\text{Distance hiked each day}}[/tex]
[tex]=\dfrac{72}{16}\\\\=\dfrac{9\times8}{2\times8}=\dfrac92\\\\=4\dfrac12[/tex]
It will take 4 complete days and a half day to complete the journey.
i.e. They will hike exactly 16 miles each day for 4 days.