document.write( "Question 1207182: The speedometer of Terry's small pickup truck is designed to be accurate with tires of radius 14 in. Find the number of rotations of a tire in 1hr if the truck is driven at 55mph. \n" ); document.write( "
Algebra.Com's Answer #844904 by Theo(13342)![]() ![]() You can put this solution on YOUR website! if the truck travels at 55 miles per hour for 1 hour, then the truck has traveled 55 miles.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "55 miles * 5280 feet per mile * 12 inches per foot = 3484800 inches.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if the radius of the wheel is 14 inches, then the circumference of the wheel is 2 * pi * 14 inches.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3484800 / (2 * pi * 14) = 39615.93898 rotations of the tire.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |