Question

a unit rate is a rate in which one of the quantities is 1. the unit rate is the same as the constant of proportionality. in our ice cream example, 1 scoop of ice cream costs $2. the unit rate, or unit price, of dollars per scoop is 2.
terrell sells clay pots. he sells 2 clay pots for $6, 3 clay pots for $9, and 4 clay pots for $12. what is the unit rate of dollars per clay pot?
choose one option
a 1
b 2
c 3
d 4

Explanation:

Step1: Calculate unit rate for 2 pots

Unit rate = $\frac{\text{Total cost}}{\text{Number of pots}} = \frac{6}{2} = 3$

Step2: Verify with 3 pots

$\frac{9}{3} = 3$

Step3: Verify with 4 pots

$\frac{12}{4} = 3$

Answer:

C 3