Question

5.The 5th term of an arithmetic sequence is 38 and 9th term is 66.What is it's common difference?

Answer 1

Answer:

common difference=7

Step-by-step explanation:

5th term=38

a+4d=38 (1st eq)

9th term=66

a+8d=66 (2nd eq)

2nd eq-1st eq

a+8d=66

a+4d=38

4d=28

d=28/4

common difference (d)=7

I hope this answer may help you