Final answer:
The price of the other backpack could be $19.70.
Step-by-step explanation:
Given that the difference in price between the two backpacks is $19.30 and one backpack costs $39.00, we can find the price of the other backpack by subtracting $19.30 from $39.00.
$39.00 - $19.30 = $19.70
Therefore, the price of the other backpack could be $19.70.