brebrej24 brebrej24
  • 18-11-2020
  • Mathematics
contestada

Find three consecutive even integers such that the sum of the first and the third is 128.​

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 02-01-2021

9514 1404 393

Answer:

  62, 64, 66

Step-by-step explanation:

I like to work "consecutive integer" problems by considering the average, or middle value. If we call that x, then the problem statement tells us ...

  (x -2) +(x +2) = 128

  2x = 128 . . . . . collect terms

  x = 64 . . . . . . . divide by 2

The middle integer is 64, so the three even integers are 62, 64, 66.

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