number of rows --- x
number of seats per row --- x+8
x(x+8) = 1920
x^2 + 8x - 1920 = 0
(x-40)(x+48)=0
x = 40 or x = -48, which of course makes no sense
there are 40 rows, and each row has 48 seats
A rectangular auditorium seats 1920 people. The number of seats in each row exceeds the number of rows by 8. Find the number of seats in each row.
1 answer
1 answer