Asked by Sequence and series
The 4th term of an A.P.is 37 and the 6th term is 12 more than the 4th term.find the 1st and the 7th term of the sequence.
Answers
Answered by
Reiny
4th term is 37 ---> a + 3d = 37
6th term is 12 more than 4th term ---> a+5d = a+3d + 12
2d = 12
d = 6
then in a+3d = 37
a + 18 = 37
a = 19
first term is 19
7th term = a+6d = 127
check:
19 25 31 37 43 49
is 4th term 37 ? yes
is 6th term 12 more than 4th? yes
6th term is 12 more than 4th term ---> a+5d = a+3d + 12
2d = 12
d = 6
then in a+3d = 37
a + 18 = 37
a = 19
first term is 19
7th term = a+6d = 127
check:
19 25 31 37 43 49
is 4th term 37 ? yes
is 6th term 12 more than 4th? yes
Answered by
angel
1 = 6.16 and 7= 43.12
Answered by
angel
i think
Answered by
angel
Reiny can u answer my other question please it is the latest one about the charity swim
Answered by
Neeka
a+6d=19+36=55
Answered by
John AKOCHE ADANU
Arithmetic and geometric progression. the following expression respresents a general arithmetic progression (AP):
A + (a + d ) + ( a + 2d) + :: + (1 - d) + 1
A + (a + d ) + ( a + 2d) + :: + (1 - d) + 1
Answered by
4UMAN
WRONG
Answered by
Dasilva
19 and 55
Answered by
Samuel Anietie
Good and correct
Answered by
Adelaide gr8
Reiny is correct
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