Answer:
$0.25 is the cost per cookie
Step-by-step explanation:
Unit rate defined as the rate are expressed as a quantity as 1 such as 4 meter per second or 4 miles per hour
As per the statement:
If three dozen cookies cost $9.
Use conversion:
1 dozen = 12
then;
3 dozen = 36
then;
36 cookies cost $9.
Cost of cookies = $9
Number of cookies = 36
Then by unit rate definition we have;
[tex]\text{Cost per cookies} = \frac{\text{Cost}}{\text{Number of cookies}} = \frac{9}{36}[/tex]
⇒[tex]\text{Cost per cookies} = \frac{1}{4} = \$ 0.25[/tex]
Therefore, $0.25 is the cost per cookie
