Hiro has 5 kilog of potatos a 2 kg of onions he plans to use 3.25 kg of potatoes and 550 grams of onions for recipe. how many total kilograms of the produce will not be used?

Step 1: Find out how many kilograms of onions Hiro will use.

(1 gram = 0.001 kilogram)

550 grams = 0.55 kilograms

Step 2: Find out how much produce was not used for potatoes and onions

5 kg - 3.25 kg = 1.75 kg

2 kg-0.55 kg = 1.45 kg

Step 3: Add together the unused produce.

1.75 + 1.45 = 3.2 kg were not used.