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anonymous

  • 4 years ago

You are to form a 5 digit number from the digits 1,2,4,6,7,8, and 9, using each at most once. Total possible = 2520 How many of these (total) are less than 50000?___

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  1. anonymous
    • 4 years ago
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    3*6*5*4*3=1080

  2. anonymous
    • 4 years ago
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    3 possibilities for first digit 6 possibilities for second digit 5 possibilities for third digit 4 possibilities for fourth digit 3 possibilities for fifth digit

  3. anonymous
    • 4 years ago
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    right on the money.... how exactly did you get 3 possibilities for the first digit and 3 possibilities for the fith digit?

  4. anonymous
    • 4 years ago
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    fifth

  5. anonymous
    • 4 years ago
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    3 for the first since the number has to start with 1,2 or 4

  6. anonymous
    • 4 years ago
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    to be less than 50000

  7. anonymous
    • 4 years ago
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    and for the rest, one number is used each time so it decreases by 1

  8. anonymous
    • 4 years ago
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    oh ok great thank you very much i attempted that over and over...there have been about 5 problems i havent been able to deal with successfully

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