To find the amount of carbohydrates in 3 ounces of mixed nuts when you know that there are 5.25 grams of carbohydrates per ounce, you should multiply the number of ounces by the amount of carbohydrates per ounce.
So, you would use the calculation:
Multiply 3 times 5.25.
This is the correct method to find the total carbohydrates in 3 ounces of mixed nuts.