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The 3rd terms of the arithmetic sequece is 6 and 18th term is 21 find the common deffrence the first term and the 24th term​

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Answer:

The 5th term of an arithmetic sequence is 20 and the 8th term is 34. What is the common difference and what is the

Step-by-step explanations

first term?

a+4d=20_(1)

a+7d=34_(2)

Subtracting (1) from (2),

3d=14

d=14/3

Put d=14/3 in (1)

a+4x14/3=20

a=20-56/3

a=4/3

So first term=4/3

Common difference =14/3

Hope it helps.

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