Question

A theater can seat 160 people. The number of rows is 6 less than the number of seats in each row. How many rows of seats are there?

Answer 1

10 rows

Explanation:

X=rows, y=seats

xy=160 eq1

x=y-6 eq2

y(y-6)=160 plug into eq 1

y^2-6y=160

y^2-6y-160=0

(y-16)(y+10)=0 factor

y=16, y do not equal to -10 bc it's negative

x=y-6=10