To find the price of one bottle of juice, you can divide the total cost by the number of bottles.
Ariza paid $13.50 for 10 bottles of juice:
\[ \text{Price per bottle} = \frac{\text{Total cost}}{\text{Number of bottles}} = \frac{13.50}{10} = 1.35 \]
So, the price of one bottle of juice is $1.35.