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mathmath333

  • one year ago

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  1. mathmath333
    • one year ago
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    Using digits {0,1,2,3,4,5,6} how many 4 digit numbers greater than 3000 can be formed if repetition is allowed ?

  2. anonymous
    • one year ago
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    I am not sure

  3. anonymous
    • one year ago
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    the digit in the thousands place can be 3,4,5,6 the digit in the hundreds place can be 0,1,2,3,4,5,6 the digit in the tens place can be 0,1,2,3,4,5,6 the digit in the ones place can be 0,1,2,3,4,5,6

  4. anonymous
    • one year ago
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    Multiply the number of ways for each, then subtract 1 to exclude 3000

  5. mathmath333
    • one year ago
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    4*7*7*7=

  6. mathmath333
    • one year ago
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    this one ?

  7. anonymous
    • one year ago
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    yes, then subtract 1 to reject 3000

  8. mathmath333
    • one year ago
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    4*7*7*7-1

  9. anonymous
    • one year ago
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    I believe that is correct

  10. mathmath333
    • one year ago
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    thanks

  11. mathmath333
    • one year ago
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    |dw:1439995372923:dw|

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