This is an Arithmetic Progression with 1st term 11 and common difference d=6
Number of Rows Number of seats Common difference " d"
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1st a₁ = 11
2nd a₁+d =17 d =2nd - 1st = 6
3rd a₁ +2d = 23 d =3rd - 2nd = 6
4th a₁ +3d = 29 d= 4th - 3rd = 6
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nth ROW a(n) = a₁ + (n-1)d
18th ROW a₁₈ = 11 + (18-1).6 = 11+(17)(6) = 113
General equation to predict the number of seat an the nth row:
Number of seats in nth row = a₁ + (n-1).d
KJ, IK, HI, HK, then HJ
i think this is it. hope it helps!! :)
Answer:
-4
Step-by-step explanation:
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Nope you posted this five days ago no need for another answer.
Answer:
Step-by-step explanation:
2x = 128
x = 128/2
x = 64