document.write( "Question 307708: A water glass is shaped like a cylinder with height 6in. and diameter 2in. How many times as much water can a glass twice as tall and twice as wide hold? \n" ); document.write( "
Algebra.Com's Answer #220096 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A water glass is shaped like a cylinder with height 6in. and diameter 2in. How many times as much water can a glass twice as tall and twice as wide hold? \n" ); document.write( "----------------------------- \n" ); document.write( "The volume of a cylinder is a function of height, and of the radius squared. \n" ); document.write( "Doubling the height doubles the volume. \n" ); document.write( "2x the radius --> 4 times the volume. \n" ); document.write( "2x * 4x = 8 times the volume. \n" ); document.write( "-------------------------------- \n" ); document.write( "There's no need to calculate the volumes, since it's not asked for. \n" ); document.write( "The answer is 8x, 8 times the volume. \n" ); document.write( "NOT 8 times more, 8 times as much. \n" ); document.write( " \n" ); document.write( " |