anonymous
  • anonymous
The 13th term of an arithmatic sequence is 69. The common difference is 7. What is the first term of the sequence?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Mertsj
  • Mertsj
69-12(7)
anonymous
  • anonymous
show your work please?
lgbasallote
  • lgbasallote
An = A1 + (n-1)d you're looking for A1..you're given a certain value in the sequence which is A13 = 69..so n=13 d = 7 can you substitute these values to the variables in the equation?

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amistre64
  • amistre64
that was the work .... its just the sequence in reverse right?
amistre64
  • amistre64
if the first terms is 69 and the common diff is -7, what is the 13th term? :)

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