Question

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?___

Answer 1

3*6*5*4*3=1080

Answer 2

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

Answer 3

right on the money....
how exactly did you get 3 possibilities for the first digit and 3 possibilities for the fith digit?

Answer 4

fifth

Answer 5

3 for the first since the number has to start with 1,2 or 4

Answer 6

to be less than 50000

Answer 7

and for the rest, one number is used each time so it decreases by 1

Answer 8

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