document.write( "Question 444697: Seven people line up for a photo. How many different line ups are possible if 2 people refuse to sit together? \n" ); document.write( "
Algebra.Com's Answer #306469 by robertb(5830)![]() ![]() You can put this solution on YOUR website! Count the total number of ways the two people SIT TOGETHER. This 2!6!\r \n" ); document.write( "\n" ); document.write( "Subtract from the total number of ways 7 people can line up. This is 7!\r \n" ); document.write( "\n" ); document.write( "Hence 7! - 2!6! = 3600 ways. \n" ); document.write( " |