Karin S. answered • 09/13/16

Reasonable and Reliable Math Tutor

s

_{n}=15+(n-1)2the 20th row n=20 so the seats are

15+(20-1)(2)=53 seats

Anna R.

asked • 09/13/16the previous row.

a) Calculate the number of seats in the 20th row.

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Karin S. answered • 09/13/16

Reasonable and Reliable Math Tutor

s_{n}=15+(n-1)2

the 20th row n=20 so the seats are

15+(20-1)(2)=53 seats

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