Respuesta :

Answer:

11, 13 , 15

Step-by-step explanation:

to find the average, add the three integers and divide them by 3 (because that's their quanitity)

11 + 12 + 15 = 39

39/3 = 13

The numbers are 11,13, and 15.

First, since the average is 13, and it is into three values, multiply 13 by 3 to get 39. Now, use the formula, x+x+2+x+4 to get your answer.

Simplify the formula into 3x+6=39.
First, subtract 6 from both sides to get 3x+=33. Now, divide by three to get 11. Finally, add 2 and 4 because that was how we wrote it in the original equation, and you get your answer