a=12, d=-3, an=99 ,n=?
Answers
Answered by
6
Answer:
30th term of the A.P is 99
Step-by-step explanation:
an = a + (n - 1)d
99 = 12 + (n - 1)3
87 = 3n - 3
90 = 3n
n = 30
Answered by
1
Answer:
8.25
Step-by-step explanation:
an=99
give here a = 12
substitute a in an=99 you get
12n=99
n= 99
---- = 8.25
12
n=8.25
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