To find the unit price per kilogram of the bag of rice, you can divide the total cost by the total weight in kilograms.
Given:
- Cost of the bag of rice = $18.90
- Weight of the bag of rice = 7 kg
Unit price per kilogram = Total Cost / Total Weight
Unit price per kilogram = $18.90 / 7 kg
Unit price per kilogram = $2.70
Therefore, the unit price is $2.70 per kilogram.