Question

Which of the following is the arithmetic sequence formula for this list?
16, 31, 46, 61, ...





i think its the third one.........

Answer 1

What is the difference between :
The2nd term and the first? 31-16?
The 3rd and the 2nd: 46-31?
The 4th and the 3rd: 61-46?

Answer 2

sorry i didnt post tghe answers i think its tn=n+16

Answer 3

@philo1234

Answer 4

What is the answer to my questions above. What did you get for the three calculations?

Answer 5

16

Answer 6

31-16 =15

Answer 7

haha oops..

Answer 8

tn=15n+1??

Answer 9

tn=n+15. Do u have that as one of the choices?

Answer 10

the choices are tn=15n+1 and tn=16n+31 and tn=n+16

Answer 11

@philo1234

Answer 12

@AriPotta @jim_thompson5910

Answer 13

when n = 1, tn should be 16

so let's check tn=16n+31

tn=16n+31

tn=16(1)+31 ... Plug in n = 1

tn = 47

which is NOT 16, so tn=16n+31 is NOT the answer

Answer 14

so what is the answer??

Answer 15

you need to check n = 1 and n = 2 for each answer choice and you should get 16 and 31

Answer 16

Jim is correct I was approaching the question with the wrong view. 15n+1 would be the correct answer. if you do the same check that jim did for 16n+31. check when n=1, 2, 3 and so on.

Answer 17

oh ok thanks:)