khadija411441 khadija411441
  • 04-05-2017
  • Mathematics
contestada

What is the sum of the finite arthemetic series (-10)+0+10+20....+130

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Gamerkingjames
Gamerkingjames Gamerkingjames
  • 04-05-2017
that would be 20,30,40,50,60,70,80,90,100,110,120,130.    200,150,300,250     
650 + 250 = so the answer would be 900.
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