Mathematics
chutinan123
28

A theater can seat 725 people. The number of rows is 4 less than the number of seats in each row. How many rows of seats are there?

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(1) Answers
Ginesalisha21

725 is equal to (number of rows)*(number of seats per row) r = s-4 725 = (s-4)s s^2-4s-725 = 0 Factoring: (s-29)(s+25) = 0 Thus there are 29 seats per row, and 25 rows. 

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