math

posted by .

How many 4-digit numbers can be formed using the numbers 5, 6, 7 and 8? How many of the 4-digit numbers are less than 7000?

  • math -

    Since there are 4 choices for each digit, there are 4^4 = 256 different numbers.
    Only half of them begin with 5 or 6

  • maths -

    \

  • math -

    24

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    A book called The Penguin Dictionary of Curious and Interesting Numbers by David Wells (1986) contains fascinating numbers and their properties. One of which is the only 3-digit numbers that are prime and all rearrangements of their …
  2. 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?
  3. Math

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

    How many Seven-Digit numbers less than 1,048,000 can be using the digits 0,1,4,6,7,8 and 9 ?
  5. 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?
  6. math

    the hundred thousands digit of a six-digit even numbers is 3 more than the thousand digit,which is twice the ones digit.give at least four numbers that satisfy the given condition.
  7. Math

    Given the digits 1,2,5,7,8,9,0 and if repetition are not allowed, answer each of the following: A) how many 3 digit numbers canbve formed that are divisible by 5?
  8. Math

    If no digit can be used more than once, how many 5-digit numbers can be formed only using the numbers 3,8,1,2,5, and 7?
  9. probability statistics

    how many numbers between 4000 and 7000 can be choosen using digita 0,1,2,3,4,5,6,7 and 8 if each digit must not be repeated in any numbers?
  10. Math

    How many 4-digit numbers can be formed using the numbers 4, 5, 6 and 7?

More Similar Questions