Answer:
The unit rate is
Explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or
Let
x ------>the time in minutes
y -----> the distance in feet
This problem represent a proportional variation
so
The unit rate is the constant of proportionality (slope) of the direct variation
Observing the table
For x=5, y=120
substitute
therefore
The unit rate is