Respuesta :

40 miles per hour because 140 divided by 3.5 is 40.

Answer: The unit rate would be 40 mi/hr.

Step-by-step explanation:

Since we have given that

Length = 140 mi

Number of hours = 3.5 hours

We need to find the unit rate.

According to question, it becomes,

[tex]\dfrac{Length}{Number\ of\ hours}[/tex]

[tex]\dfrac{140}{3.5}\\\\=40\ mi/hr[/tex]

Hence, the unit rate would be 40 mi/hr.