A theater has 22 seats in the first row, 25 seats in the second row,
28 seats in the third row, and so on. How many seats are in the
Fifteenth row?
The nth row has 19+3n seats
so, plug in n=15
To find the number of seats in the fifteenth row, we need to identify the pattern in the number of seats in each row.
From the given information, we notice that the number of seats increases by 3 as we move to each subsequent row.
So, to find the number of seats in the fifteenth row, we can use the formula:
Number of seats in a specific row = Number of seats in the first row + (Row number - 1) * Increase in seats
Let's substitute the values into this formula:
Number of seats in the fifteenth row = 22 + (15 - 1) * 3
Simplifying the equation:
Number of seats in the fifteenth row = 22 + 14 * 3
Number of seats in the fifteenth row = 22 + 42
Number of seats in the fifteenth row = 64
Therefore, there are 64 seats in the fifteenth row.