Answer:

Explanation:
Unit rate defined as the rates are expressed as a quantity as 1 such as 2 meter per seconds or 5 miles per hour.
As per the statement:
A slush drink machine fills 1440 cups in 24 hours
By definition of unit rate;
Rate of filling:
cups
Here, c represents the number of cups filled in t hours.
then;
An equation we get;
where t is the time in hours.
Therefore, an equation to find the number c of cups each symbol represents is,
