Question

Find the 31st term of the following sequence.

9, 15, 21, ...


186
189
195

Answer 1

What's the increase from 9 to 15?

Answer 2

Are you there, @cherie_magee

Answer 3

yeah...an 6 @GoldPhenoix

Answer 4

Good. What was the increase from 15 to 21?

Answer 5

it's all 6 i just think thats toooo much to do

Answer 6

@GoldPhenoix

Answer 7

an = a1 + (n-1)d
n (the number of the term you want to find) = 31
a1 (the first term) = 9
d (the common difference) = 6
now sub that into your formula.....
a31 = 9 + (31 - 1) * 6
a31 = 9 + (30 * 6)
I believe you can finish it from here :)

Answer 8

LOL THANK YA SUGAR FOOT ;* @texaschic101

Answer 9

no problem :)