Answer:
The speed is equal to [tex]5\frac{mi}{h}[/tex]
Step-by-step explanation:
we know that
The speed is equal to divide the distance by the time
Let
x------> the distance in miles
y-----> the time in hours
s----> the speed in mph
so
[tex]s=\frac{x}{y}[/tex]
In this problem we have
[tex]x=(1/4)\ mi[/tex]
[tex]y=(1/20)\ h[/tex]
substitute
[tex]s=\frac{(1/4)}{(1/20)}=20/4=5\frac{mi}{h}[/tex]