itzeldelgado04 itzeldelgado04
  • 12-04-2018
  • Mathematics
contestada

The sum of 4 consecutive odd numbers is40. What is the second number in this sequence?

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mathstudent55
mathstudent55 mathstudent55
  • 12-04-2018
The difference between any two consecutive odd numbers is 2.

Let the smallest number be x.
The other three numbers are x + 2, x + 4, x + 6.

Their sum is 40.

x + x + 2 + x + 4 + x + 6 = 40

4x + 12 = 40

4x = 28

x = 7

The second number is x + 2 = 7 + 2 = 9.

Answer: 9
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