# SOLUTION: A theater has 32 rows of seats. The first row has 24 seats. Each of the remaining rows increases by 2 seats. How many seats are there in the theater? know: tn=32 a=24

Algebra ->  Algebra  -> Sequences-and-series -> SOLUTION: A theater has 32 rows of seats. The first row has 24 seats. Each of the remaining rows increases by 2 seats. How many seats are there in the theater? know: tn=32 a=24       Log On

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 Click here to see ALL problems on Sequences-and-series Question 247865: A theater has 32 rows of seats. The first row has 24 seats. Each of the remaining rows increases by 2 seats. How many seats are there in the theater? know: tn=32 a=24 r=2 find: n So wouldn't I use the formula tn=a(r) to the exponent n-1?Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!this is arithmetic (not geometric) ___ d = 2 (not r) 1st row -- 24 ___ 32nd row -- 24 + 2(31) = 86 average ___ (24 + 86) / 2 = 55 32 * 55 = 1760