Final answer:
To calculate what percent of Alaska is not land area, subtract the land area from the total area, divide by total area, and multiply by 100, yielding approximately 13.11% of Alaska is not land area.
Step-by-step explanation:
To find out what percent of Alaska is not land area, we need to subtract the land area from the total area, then divide that number by the total area, and finally multiply by 100 to convert to a percentage.
Total area of Alaska = 656,000 square miles
Land area of Alaska = 570,000 square miles
Area that is not land = Total area - Land area
Area that is not land = 656,000 - 570,000
Area that is not land = 86,000 square miles
Now we will find the percentage:
Percentage not land = (Area that is not land ÷ Total area) × 100
Percentage not land = (86,000 ÷ 656,000) × 100
Percentage not land = 0.1311 × 100
Percentage not land = 13.11%
Therefore, approximately 13.11% of Alaska is not land area.