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17 June, 23:13

A theater has 40 seats in the first row 42 seats in the second row 44 seats in the third world how many seats are in the 20th row

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  1. 18 June, 02:32
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    It seems to be increasing by two each time. So, a simple equation would work.

    Let y = total seats

    Let x = row number

    y = 38 + 2x. Substitute 20 for x

    y = 38 + 2 (20) solve for the total.

    y = 78.

    There are 78 seats in the 20th row
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