document.write( "Question 965234: In how many distinct ways can a 15-digit number be made using eight 7s and seven 8s? \n" ); document.write( "
Algebra.Com's Answer #590905 by Edwin McCravy(20055)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "Choose the positions for the eight 7s in 15C8 = 6435 ways\r\n" ); document.write( "Put 7 8s in all the other positions in only 1 way.\r\n" ); document.write( "\r\n" ); document.write( "Answer: 6435 ways.\r\n" ); document.write( "\r\n" ); document.write( "Edwin\n" ); document.write( " |