document.write( "Question 11373: Suppose that the volume of a sphere is numerically equal to twice the surface area of the sphere. Find the length of a radius of the sphere. \n" ); document.write( "
Algebra.Com's Answer #5889 by Earlsdon(6294)\"\" \"About 
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Set the formula for the volume of the sphere = twice the formula for the surface area of the sphere and solve for r..\r
\n" ); document.write( "\n" ); document.write( "\"%284%2F3%29%28pi%29r%5E3+=+2%284%28pi%29r%5E2%29\" solve for r. Divide both sides by \"%28pi%29r%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"%284%2F3%29r+=+8\" Multiply both sides by (3/4)\r
\n" ); document.write( "\n" ); document.write( "\"r+=+6\"
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