6
Well there is a single (1) five digit in the number. If you want to know how many times can 5 go into 725, then you divide and get 145.
I count 14 of them.
50 to the 5th power.156,250 combination.
In the Rb atom, the electron configuration is [Kr]5s^1. This means there is 1 electron in the 5s sublevel of the Rb atom.
The digit zeroes appear in the numbers 10, 20, 30, 40 and 50, making a total of 5 digit zeroes.
16
5 digit combinations for numbers 1 to 50= 50 C 5N!= 1x2x3x4x...x (N-1) x N= (50!)/(45!x5!) =(50x49x...x2x1)/((45x44x...x2x1)(5x4x3x2x1))=(50x49x48x47x46)/(5x4x3x2)=254251200/120 =21187602118760 combinations
The answer is 9C4 = 9*8*7*6/(4*3*2*1) = 126 ways.
There are nine one-digit numbers from 1 to 50. These numbers are 1, 2, 3, 4, 5, 6, 7, 8, and 9. All other numbers in that range are two digits or greater.
there are 3 2/5ths in 1
154,14,24,34,40,41,42,43,44 (is 2),45,46,47,48 and 49
55 of them.