document.write( "Question 618311: If 0 is not being used and only two of the digits are even,how many 5-digit codes can be formed with no repetition allowed? \n" ); document.write( "
Algebra.Com's Answer #388814 by vleith(2983)![]() ![]() ![]() You can put this solution on YOUR website! There are 5 odd digits and you are told you can have 2 non-zero even ones. So that's a total of 7 digits \n" ); document.write( "The digits cannot repeat. \n" ); document.write( "So you have 7 choices for the first digit in the zipcode. \n" ); document.write( "Now there are 6 digits left to pick from. \n" ); document.write( "So you have 6 choices for the second zicode digit. \n" ); document.write( "You have 5 choices for the third one. \n" ); document.write( "Then 4 for the fourth one and 3 for the last digit \n" ); document.write( "How many choices is that? \n" ); document.write( " \n" ); document.write( "You do the math ! \n" ); document.write( " |