Question

Identify the 19th term of the arithmetic sequence 5, 16, 27 …

Answer 1

an=a1 + (n-1)d
a19 = 5 +(19-1) ... then I'm stuck

Answer 2

What is the common difference?

Answer 3

5+x=16
16+x=27
27+x= the fourth term
What is x ?

Answer 4

11

Answer 5

So replace d in your formula with 11 and complete the calculation

Answer 6

What did you get?

Answer 7

a19=203?

Answer 8

Yep. That's what I got as well.

Answer 9

yay thanks (:

Answer 10

what if its fractions

Answer 11

The process is the same. Do you have an example?

Answer 12

Identify the 25th term of the arithmetic sequence 2, 1(3/5), 1(1/5)

Answer 13

so its going by 2/5?

Answer 14

Do you mean 1times 3/5 or 1 and 3/5?

Answer 15

1 and 3/5

Answer 16

2+x=1 3/5
1 3/5+x= 1 1/5
1 2/5 + x = the fourth term
What is x?

Answer 17

i don't know how to find that