In an arithmetic sequence d represent the common difference.
The formula to find the general term of an arithmetic sequence is,
Where 
= nth term and
= First term.
Given, 
. Therefore,
Next step is to subtract the above equations so that we can eliminate a1 and get the value of d. Hence,
4d - 8d = 24 - 40
-4d = - 16
Divide each sides by - 16.
d = 4
So, d = 4.
Hope this helps yoi!.
Answer:
{-2, 6}
Step-by-step explanation:
10-5y=20
-5y=10
y=-2
10-5y=-20
-5y=-30
y=6
Answer:
The answer is 140
Step-by-step explanation:
You multiply 400 by 0.35 to get your answer. So, it would be 140 :) Hope i helped!
The answer is 50. I have the same question and it makes no sense. The r= and the d= are supposed to have answers, but I’m not sure how you get them
You should divide 43 from 126
