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26 August, 14:27

Given a=5, d=3, an = 50. find the n and 5n

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Answers (2)
  1. 26 August, 14:29
    0
    Step-by-step explanation:

    an = 50

    a + (n-1) d = 50

    5 + (n-1) * 3 = 50

    (n-1) * 3 = 50 - 5 = 45

    n-1 = 45/3

    n-1 = 15

    n=15+1 = 16

    n = 16
  2. 26 August, 14:48
    0
    Answer:n=10, 5n=50

    Step-by-step explanation:

    an=50

    n=50/a

    n=50/5=10

    5n=5*10=50
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