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5 March, 16:57

A theater can seat 391 people. the number of rows is 6 less than the number of seats in each row. how many rows of seats are there.

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  1. 5 March, 17:03
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    X (x-6) = 391

    x2-6x-391 = 0 (x-23) (x+17) = 0

    since the number of seats should be positive,

    x = 23

    The number of rows is 23 - 6 = 17

    (To check our work)

    391 / 17 = 23

    So, there are 17 rows of seats.
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