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FrankyV4387
30.04.2021 •
Mathematics
A movie premiere had a full house of 350 film buffs. The price of the tickets was $6 for adults and $4 for underage. The income from ticket sales was $1,600. What is the number of adult's, x, who attended?
A 80
B 140
C 100
D 250
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Ответ:
The answer would be D.262,144
because
an = 4n-1
a10 = 49
262,144