jasminvienbergkryger jasminvienbergkryger
  • 17-10-2020
  • Mathematics
contestada

You need to find three numbers that come in quick succession in the order of numbers (ex. 1, 2 and 3) and which
in total gives 30. What are the numbers?
equation

Respuesta :

5233
5233 5233
  • 17-10-2020

Answer:

set middle number=x

then left side number=x-1

and right side number=x+1

(x-1)+x+(x+1)＝30

3x=30

x=10

x-1=9

x+1=11

numbers are 9,10,11

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