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A theater can seat 208 people. The number of rows is 3 less than the number of seats in each row. How many rows of seats are there?

User Kavadias
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Answer: there are 13 rows of seats in the theater.

Step-by-step explanation: Concurring to the issue, the number of lines is 3 less than the number of seats in each push. So, the number of lines can be communicated as "x - 3".

We know that the theater can situate 208 individuals, so the entire number of seats can be communicated as "x times (x - 3)".

Hence, we are able type in the condition as:

x(x - 3) = 208

Expanding the condition, we get:

x^2 - 3x - 208 =

Presently, ready to unravel this quadratic condition to discover the esteem of "x" which speaks to the number of seats in each push:

Utilizing the quadratic equation:

x = (-b ± sqrt(b^2 - 4ac)) / 2a

where a = 1, b = -3, and c = -208

x = (-(-3) ± sqrt((-3)^2 - 4(1)(-208))) / 2(1)

x = (3 ± sqrt(841)) / 2

x = (3 ± 29) / 2

Ready to disregard the negative arrangement, so:

x = (3 + 29) / 2

x = 16

Hence, the number of seats in each push is 16.

And, the number of columns can be communicated as "x - 3":

Number of columns = 16 - 3 = 13

User Florian Fasmeyer
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