Am I doing this right so far?
What is the 15th term of the arithmetic sequence 16, 23, 30, ?

First term: 16
Common ratio: 23/16 = 1.4375

Question

Am I doing this right so far?
What is the 15th term of the arithmetic sequence 16, 23, 30, ? 

First term: 16
Common ratio: 23/16 = 1.4375

hartnn · Answer

why common ratio ?
thats for geometric sequence, 
we are dealing with arithmetic sequence here.

hartnn · Answer

so, find common difference d=.... ?

anonymous · Answer

oh my error

anonymous · Answer

oh right!!! ok let me seee

anonymous · Answer

so i find a number that goes into all of the numbers above?

hartnn · Answer

you find a number which when added to current term, gives you next term

hartnn · Answer

what would you add to 16 to get 23
what would you add to 23 to get 30
?

anonymous · Answer

16 + 7?

anonymous · Answer

omg it's 7!!! :))

hartnn · Answer

thats correct, so common difference 
d=30-23=23-16 =7
now you know the formula for n'th term of arithmetic sequence ?

anonymous · Answer

yes

hartnn · Answer

so, what you got 15th terms as ?

anonymous · Answer

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