document.write( "Question 187978: Gerry wants to inflate an exercise ball. The ball has a radius of 15 inches. If a pump can push 5 cubic inches of air everysecond, how many seconds will it take to inflate the ball? \n" ); document.write( "
Algebra.Com's Answer #140919 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Gerry wants to inflate an exercise ball. The ball has a radius of 15 inches. If a pump can push 5 cubic inches of air everysecond, how many seconds will it take to inflate the ball? \n" ); document.write( "----------------------------- \n" ); document.write( "The volume of a sphere of radius r is \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "V = 4500*pi cubic inches \n" ); document.write( "t = 4500pi/5 = 900*pi seconds \n" ); document.write( "t = ~ 2827.43 seconds \n" ); document.write( " \n" ); document.write( " |