document.write( "Question 348764: a train a mile and a half long takes a minute and a half to go through a tunnel a mile and a half long. how fast is it going? \n" ); document.write( "
Algebra.Com's Answer #249323 by stanbon(75887) ![]() You can put this solution on YOUR website! S=2(pi)rh, for h \n" ); document.write( "-------- \n" ); document.write( "h = S/(2(pi)r) \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "========== \n" ); document.write( " |