Recent content by jade35

  1. J

    Finding the Number of Terms and Common Difference in a Finite Series

    thank you! I'm a wee bit closer now.
  2. J

    Finding the Number of Terms and Common Difference in a Finite Series

    The a(n)= a1 + (n-1)d equation?
  3. J

    Finding the Number of Terms and Common Difference in a Finite Series

    A little bit. So I just keep going (43 + 3d) and so on and so on? How will I finally find what d equals?
  4. J

    Finding the Number of Terms and Common Difference in a Finite Series

    I'm in Algebra 2, 8th grade. This question is driving me nuts! My book and notes do not help at all. The sum of a series is 2125. The first term is 43 and the last term is 127. How many terms are there, and what is the common difference? I have no idea how to find the terms, because all of...
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