An amphitheatre has 15 seats in the first row, 19 in the second, 23 in the third, and so on, for 34 rows. How many seats are

Question

3 years ago

6

in the amphitheatre?

1 answer:

Mars2501 [29] · Answer 1 · 2022-07-12T19:40:03+03:00

4 0

Total seats=15+19+23+27+31+35+39+43+47+51+55+59+63+67+71+75+79+83+87+91+95+99+103+107+111+115+119+123+127+131+135+139+143+147=2754 seats

An amphitheatre has 15 seats in the first​ row, 19 in the​ second, 23 in the​ third, and so​ on, for 34 rows. How many seats are