Respuesta :
The rule states that if the sum of the digits of the entire number is divisible by 9, so is the original number
2 + 1 + 1 + 5 = 9
So 9 is the sum of the digits
9 is divisible by 9
Therefore 2115 is divisible by 9
Hope this helped! ^-^
2 + 1 + 1 + 5 = 9
So 9 is the sum of the digits
9 is divisible by 9
Therefore 2115 is divisible by 9
Hope this helped! ^-^