SOLUTION: Earth has a thin outer layer called the crust, which averages about 24 km thick. Earth's diameter is about 12,750 km. What percentage of the volume of Earth is the crust?

Question 1053631: Earth has a thin outer layer called the crust, which averages about 24 km thick. Earth's diameter is about 12,750 km. What percentage of the volume of Earth is the crust?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Earth has a thin outer layer called the crust, which averages about 24 km thick. Earth's diameter is about 12,750 km. What percentage of the volume of Earth is the crust?
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Find the volume of the Earth.
r = 6375
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Find the volume of the Earth without the crust.
r = 6375 - 24
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Volume of the crust is the difference of the 2 volumes.
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Divide the crust volume by the Earth's volume.
Multiply by 100 to get %

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