delaneydetro0
delaneydetro0 delaneydetro0
  • 13-02-2017
  • Mathematics
contestada

Find the 20th term of an arithmetic sequence with a first term of 3 and a common difference of 5

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rebelbound
rebelbound rebelbound
  • 13-02-2017
So just keep subtracting 5 from three or do  5 times 20 - 3. that equals - 97
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Lorenzo07
Lorenzo07 Lorenzo07
  • 13-02-2017
it's 98...

a₂₀=3+5(20-1)

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