Question

part b
about what percent of earth’s surface is not covered in water? how many square miles is this?
enter the correct answers in the boxes.
show hints
about
%
square miles

Explanation:

To solve this, we need to know that about 71% of Earth’s surface is covered in water, so the percentage not covered is \(100\% - 71\% = 29\%\) (approximately 30% for a rough estimate). The total surface area of Earth is about \(196.9\) million square miles. To find the area not covered in water, we calculate \(29\%\) (or \(0.29\)) of \(196.9\) million. But if we use the approximate 30%:

Step 1: Find the percentage not covered in water

We know that Earth's surface is about 71% water. So the percentage not covered in water is:
\(100\% - 71\% = 29\%\) (approximately 30% for a simple estimate).

Step 2: Calculate the area not covered in water (using approximate total surface area of Earth as 197 million square miles)

If we take the approximate percentage as 30% (or 0.3) and total surface area as 197,000,000 square miles:
\(0.3\times197000000 = 59,100,000\) square miles.
If we use the more accurate 29%:
\(0.29\times197000000 = 57,130,000\) square miles (approximately 57 - 59 million square miles).

Final Answers

About \(\boldsymbol{30}\%\) (or 29%) of Earth’s surface is not covered in water.
This is about \(\boldsymbol{59000000}\) (or 57,130,000) square miles.

(Note: The exact values can vary slightly based on the source of Earth’s surface area and the precise percentage of water coverage, but the approximate values are around 30% and 59 million square miles or 29% and ~57 million square miles.)

Answer:

To solve this, we need to know that about 71% of Earth’s surface is covered in water, so the percentage not covered is \(100\% - 71\% = 29\%\) (approximately 30% for a rough estimate). The total surface area of Earth is about \(196.9\) million square miles. To find the area not covered in water, we calculate \(29\%\) (or \(0.29\)) of \(196.9\) million. But if we use the approximate 30%:

Step 1: Find the percentage not covered in water

We know that Earth's surface is about 71% water. So the percentage not covered in water is:
\(100\% - 71\% = 29\%\) (approximately 30% for a simple estimate).

Step 2: Calculate the area not covered in water (using approximate total surface area of Earth as 197 million square miles)

If we take the approximate percentage as 30% (or 0.3) and total surface area as 197,000,000 square miles:
\(0.3\times197000000 = 59,100,000\) square miles.
If we use the more accurate 29%:
\(0.29\times197000000 = 57,130,000\) square miles (approximately 57 - 59 million square miles).

Final Answers

About \(\boldsymbol{30}\%\) (or 29%) of Earth’s surface is not covered in water.
This is about \(\boldsymbol{59000000}\) (or 57,130,000) square miles.

(Note: The exact values can vary slightly based on the source of Earth’s surface area and the precise percentage of water coverage, but the approximate values are around 30% and 59 million square miles or 29% and ~57 million square miles.)