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math

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what is the sum of the 1st 10 terms of the arithmetic series that has a 10th term of 50 and a 1st term of 5

  • math -

    a = 5
    term(10) = a+9d
    5+9d = 50
    9d = 45
    d = 5

    so you have a=5 and d=5

    can you take it from there?

  • math -

    325

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