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mameadows

  • 2 years ago

how many 5 digit zip codes are possible? Assume all zip codes are possible

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  1. divu.mkr
    • 2 years ago
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    use combinations of 10c5- 9c4

  2. DDCamp
    • 2 years ago
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    There are 10 possible digits (0, 1, 2... 8, 9) So, for each spot, there are 10 possibilities, and there are 5 spots. So, we have 10⁵ = 100000

  3. campbell_st
    • 2 years ago
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    there are 10 digits possible in each position of the code so its 10 x 10 x 10 x 10 x 10 this is the fundamental theorem of counting

  4. mameadows
    • 2 years ago
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    thank you... I was making it so much harder!

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