SOLUTION: How many 5-digit ZIP codes are possible if the first number cannot be 0 and the last number cannot be 0 or 1? 64,000 100,000 90,000 72,000

Algebra ->  Finance -> SOLUTION: How many 5-digit ZIP codes are possible if the first number cannot be 0 and the last number cannot be 0 or 1? 64,000 100,000 90,000 72,000      Log On


   



Question 1036862: How many 5-digit ZIP codes are possible if the first number cannot be 0 and the last number cannot be 0 or 1?
64,000
100,000
90,000
72,000

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
5 positions, first position can only have 9 choices out of 10.
Last position can only have 8 choices out of 10.
N=9%2A10%2A10%2A10%2A8
N=72000