It is: 83-23+43 = 103
20 and 43
13 ...23 ...33 ...43 ...53=125■
The integer between the two numbers is 43.
Average. (42+43)/2 = 42.5 Come on.
777
20+23 = 43 and 43/2 = 21.5 which is the mean average
43 and 1/23 is a mixed number. As a fraction, it would be improper.
Calcium-43 has 23 neutrons because calcium's atomic number is 20, it's isotopic mass is 43, and 43-20=23.
The prime numbers between 20 and 40 are: 23, 29, 31, 37, 41, 43 and 47. 23+29+31+37+41+43+47 = 251
It is: 23+29+31+37+41+43+47 = 251
2310->5 = 43.
52
23/43 is 53.49%.
If you meant to ask what are the prime numbers between 21 and 53 inclusive, then it would be 23, 29, 31, 37, 41, 43, 47, 53
23, 29, 31, 37, 41, 43, 47 and 53.
43 - 23 - 5 = 15