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20 February, 17:49

Describe a real world scenario that is an arithmetic series. Show your work as you find the 7th term of your scenario.

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  1. 20 February, 17:59
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    A new night club opens. The first night 100 patrons attend. For each successive night for a month, 20 more attend. How many attend on the 7th night?

    Arithmetic sequence formula finding the nth number:

    a n = a 1 + (n - 1) d

    A (7) = 100 + (7-1) 20

    A (7) = 100 + (6) 20

    A (7) = 100 + 120

    A (7) = 220

    So, on the 7th night, there 220 patrons.
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