document.write( "Question 1013447: a cylindrical tank 5 ft in diameter and 10 ft high is half full of water. if the water level rises to 7 ft after putting a cubical stone in the tank, find the edge of the cube
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #629727 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! volume of a cylinder is pi*r^2h \n" ); document.write( "at 5 feet, it is pi*2.5^2*5=31.25 pi \n" ); document.write( "at 7 feet, it is pi*2.5^2*7=43.75 pi \n" ); document.write( "The difference is 12.5 pi=39.27 cubic feet \n" ); document.write( "That is the volume of the cube. \n" ); document.write( "A side is the cube root of the volume. \n" ); document.write( "3.40 feet is the length of the side. \n" ); document.write( " |