SOLUTION: Hi. I need to solve this using formulas. Can you, please, show me the step by step process because I keep getting the wrong answer. Thank you! E10k, k starts with 51 ends with 100.

Question 1051899: Hi. I need to solve this using formulas. Can you, please, show me the step by step process because I keep getting the wrong answer. Thank you! E10k, k starts with 51 ends with 100.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Calculate the first term. Calculate the last term. Add the two. Multiply the sum of the first and last terms by the number of terms. Divide the result by 2.

John

My calculator said it, I believe it, that settles it

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