There were 1080 seats in the theater.
In this question, we have been given that the 6th grade students went on a field trip to see a ballet.
The students filled 702 seats leaving 35% vacant.
We need to find the total seats in the theater.
Let there were n seats in the theater.
Given that 35 percent of total seats were vacant.
So, we get an equation,
702 + (35% of n) = n
702 + 0.35n = n
(1 - 0.35)n = 702
0.65n = 702
n = 1080
Therefore, the total seats in the theater = 1080
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