find yhe 7th term of an arithmetic sequence if the 3rd term is 5 and the 5th term is 11

Question

kindly answer it thank u

Answer 1

THINK ABOUT IT!  to get from term #3 to term #5, there would be 2 steps, each adding some constant difference.

the total increase is 11-5 which is 6, so the constant difference is d=3.

 

now, from term #five, you add 2d=6, to get term #7 = 17.

 

You really should have tried to do this yourself!