Wednesday

April 23, 2014

April 23, 2014

Posted by **Carol** on Sunday, October 21, 2012 at 12:16pm.

a) there are no other restrictins

b) the result must be an odd number

- Math -
**Reiny**, Sunday, October 21, 2012 at 12:41pma) no restrictions, except can't start with a zero

so 8x8x7x6x5 = 13440

b) has to be odd, not start with zero

has to end with odd number, there are 4 of these

can't start with zero, leaving 7 (remember one is already gone in the odd spot)

number of cases = 7x7x6x5x4 = 5880

- Math -
**Carol**, Sunday, October 21, 2012 at 12:51pmthank you!

**Related Questions**

math - How many 4-digit numbers can be formed using the numbers 5, 6, 7 and 8? ...

math - Given the set (1,2,3,4,5) how many 3-digit numbers can be formed if the ...

algebra - Consider making a four-digit I.D. number using the digits 3,5,8, and ...

Math. Explain - From the digits 1, 2, 3, and 4, how many positive integers are ...

Data managment math - 1:There are 7 seats in the family new van. if 4 of the 7 ...

math30 - The number of three digit or four digit even numbers that can be formed...

math - How many different 6 digit numbers can be formed using the digits 1,2,3,4...

college math - How many different four-digit numbers can be formed from the ...

Math - Change the base five numbers to equivalent base ten numbers. Also take ...

math - how many 7 digit numbers can be formed with the numbers 1, 2, 4, 7. (they...