Respuesta :

Answer:

average speed ≈ 71 miles per hour

Step-by-step explanation:

using the relationship

S = [tex]\frac{D}{T}[/tex]

S is the average speed, D is distance and T , time in hours

given D = 230 miles and T = 3 [tex]\frac{1}{4}[/tex] hours = 3.25 hours , then

S = [tex]\frac{230}{3.25}[/tex] ≈ 71 m/ hour ( to nearest whole number )