Atheater can seat 120 people. the number of rows is 7 less than the number of seats in each row. how many rows of seats are there?

Let x be the number of rows.

If the number of rows is 7 less than the number of seats in each row, then the number of seats in a row is x+7. The total number of seats is

x·(x+7).

You know that a theater can seat 120 people, then

x·(x+7)=120.

Solve it:

The number of rows must be positive, then x=8.

there are 8 rows with 15 seats at each.

i need a picure

step-by-step explanation:

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