Final answer:
The unit rate for bananas costing $1.89 for 3 pounds is calculated by dividing the total cost by the number of pounds, resulting in a unit rate of $0.63 per pound.
Step-by-step explanation:
The question you've asked is regarding the concept of a unit rate, which is a comparison of any two separate but related measurements when the second term is 1. To calculate the unit rate for bananas that cost $1.89 for 3 pounds, you would divide the total cost by the number of pounds.
Here's the step-by-step calculation:
- Write down the total cost and the total pounds: $1.89 / 3 pounds.
- Divide the total cost by the total pounds to find the cost per pound: $1.89 / 3 = $0.63 per pound.
The unit rate for bananas is therefore $0.63 per pound.