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What is the value of x if a cube's volume is 5x cubic units and its surface area is x square units?

 Mar 13, 2021
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The volume of a cube is a^3

 

The surface area is 6a^2

 

a^3=5x=5*6a^2

 

Which is 30a^2

 

a=30

 

6a^2=6*30^2=5400

 

Yay!

 Mar 13, 2021

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