64
It is: (90+38)/2 = 64
Then the number is 20.5
There is no such number.
The cube root of 64 is 4.4x4=1616x4=64
It is: 8 times 8 = 64
The fourth positive cube number is 4x4x4 which equals the number 64.
Let the unknown number be x: x-14+64 = 88 x = 88+14-64 x = 38 Check by substituting: 38-14+64 = 88
8
x11/x8=64
It is: 64/4 = 16
The isotope symbol for the element with atomic number Z=28 and mass number A=64 is ^64Ni.