Asked by JANET

The 8th term of a linear sequence is 18 and 12th term is 26.find the first term,common difference and 20th term
Answered by Damon
18 = a + d(8-1)
26 = a + d(12-1)

18 = a + 7 d
26 = a + 11d
------------- subtract
-8 = - 4 d
so
d = 2
now go back and get a from either equation
Answered by Folashade
Correct
Answered by Joy
That's..... Awesome
Answered by Anonymous
Since wat d difference
Answered by Heaven
Yeah 😊
Answered by Ese
Correct😍😍😍
Answered by Jolter
What about the common difference
Answered by Mmesoma
The first term of a linear sequence is 3 and the 8th term is 31 find the common difference
Answered by Patience
The first term of a linear sequence is 3 and the 8th term is 31. Find the common difference
Answered by Toke
Tn= a+(n-1)d.
8th term= a+(n-1)d.
8thterm= a+(8-1)d.
term (8)=a+7d.
But a= 3.
So, 3+7d=31.
7d=31-3=7d=28(divide both sides) d= 4.
Answered by Anonymous
Thank u
Answered by Nancy
Good
Answered by ugochukwu
I don't understand it


Answered by Feranmi
I don't understand how you solved it
Answered by Favour
What about the common difference
Answered by Patience
What about the common difference
Answered by Patience
Thanks , but what about the common difference
Answered by Patience
Thanks bye
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