document.write( "Question 868305: how may different four digit numbers can you make using 1,2,3,4,5,6,7,8,9 if no digit appears more than once in a number \n" ); document.write( "
Algebra.Com's Answer #523454 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! The 1st digit is 1 of 9 \n" ); document.write( "then 1 of 8, etc \n" ); document.write( "--> 9*8*7*6 \n" ); document.write( "= 3024 \n" ); document.write( " |