math

posted by .

How many Seven-Digit numbers less than 1,048,000 can be using the digits 0,1,4,6,7,8 and 9 ? Think: Make A List Of Possible Ways to Represent Your Seven-Digit Numbers.

  • math -

    to have a 7-digit number < 1 048 000 the first two digits have to stay.

    so let's start looking at the third place
    1 -if we keep the 4, then the remaining digits can be
    filled in 5x7x7x7 or 1715 ways
    2. If we use a digit other than 4, namely a 0 or 1,
    then the remaining digits can be filled in
    2x7x7x7x7 or 4802 ways

    for a total of 1715+4802 or 6517 ways

    systematic list:
    1 047 999
    1 047 998
    ..
    1 047 000
    1 046 999
    1 046 998
    ..
    1 046 000

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    How many seven-digit numbers less than 1,048,000 can be made using the digits 0,1,4,6,7,8, and 9?
  2. Math

    How many seven digit numbers less than 1.048,000 can be made using the digits, 0,1,4,6,7,8,9?
  3. math

    how many seven-digit numbers less than 1,048,000 can be made by using the digits 0,1,4,6,7,8,and 9?
  4. math

    how many 7 digit numbers can less than 1,048,000 can be made using digits 0,1,4,6,7,8 and 9?
  5. Math. Explain

    From the digits 1, 2, 3, and 4, how many positive integers are less than 100,000?
  6. Math

    A warranty identification number for a certain product consists of a letter of the alphabet followed by a seven-digit number. How many possible identification numbers are there if the first digit of the seven-digit number must be nonzero?
  7. math

    How many seven - digit numbers less than 1,048,000 can be made using the digits 0,1,4,6,7,8 and 9
  8. math

    How many seven- digit numbers leads than 1,048,000 can be made using digits 0,1,4,6,7,8 and 9
  9. MATH

    HOW MANY SEVEN-DIGIT NUMBERS LESS THAN 1,048,000 CAN BE MADE USING THE DIGITS 0,1,4,6,7,8,AND 9?
  10. MATH

    What is my number if the hundreds digit is less than the tens digit and less than the ones digit and the hundreds digit is even and the tends digit divided by the hundreds digit is 5 and the product of two of the digits is 6 and it …

More Similar Questions