The sum of 3 consecutive integers is 30.
What is the third number in this sequence?

11

Step-by-step explanation:

the 3 numbers are 9, 10, 11

Third number = 11

Step-by-step explanation:

Let 3 consecutive numbers be x ,x +1 , x +2

x +x+1  + x+ 2 = 30

x +x +x + 1 + 2 = 30       {Combine like terms}

     3x + 3 = 30      {Subtract 3 from both sides}

          3x   = 30 - 3

          3x = 27    {Divide both sides by 3}

            x = 27/3

x = 9

Third number =x + 2 = 9 + 2 = 11

i belive those are the ones that are under 90 degreese.