Jawaban:
U1 = a = 30
b = 5
n = 10
Banyak kursi pd baris ke-10 (U10)...?
[tex]un = a + (n - 1)b \\ u10 = a + 9b \\ u10 = 30 + 9(5) \\ u10 = 30 + 45 \\ u10 = 75[/tex]
Jadi banyak kursi pada baris ke 10 adalah
[tex]\colorbox{FFD700}{\tt{\colorbox{ffffff}{\purple{✨\:Riska\:Belia\:(RiBel)\:✨}}}}[/tex]
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Jawaban:
U1 = a = 30
b = 5
n = 10
Banyak kursi pd baris ke-10 (U10)...?
[tex]un = a + (n - 1)b \\ u10 = a + 9b \\ u10 = 30 + 9(5) \\ u10 = 30 + 45 \\ u10 = 75[/tex]
Jadi banyak kursi pada baris ke 10 adalah
75 kursi
[tex]\colorbox{FFD700}{\tt{\colorbox{ffffff}{\purple{✨\:Riska\:Belia\:(RiBel)\:✨}}}}[/tex]