Final answer:
To calculate the unit rate of the nuts, divide the total cost by the total weight in ounces, which results in a unit rate of $0.45 per ounce after rounding to the nearest cent.
Step-by-step explanation:
To find the unit rate of the nuts, we divide the total cost by the total weight in ounces. This calculation provides the cost per ounce. The unit rate formula is:
Unit Rate = Total Cost / Total Quantity
For the brand of nuts that costs $6.99 for 15.4 ounces, the calculation is as follows:
Unit Rate = $6.99 / 15.4 ounces = $0.454 per ounce
To round to the nearest cent, we look at the thousandths place, which is a 4, so we round down, and the unit rate becomes:
Unit Rate = $0.45 per ounce