Posted by **Samantha** on Thursday, June 4, 2009 at 9:11pm.

What is the 23rd term in the arithmetic sequence: 11, 14, 17, 20...?

All I need is the formula to find the it because I have to show work. Thanks.

- Math (Algebra/Pre-Algebra) -
**Reiny**, Thursday, June 4, 2009 at 9:35pm
if a is the first term

and d is the common difference

then Term(n) = a + (n-1)d

- Math (Algebra/Pre-Algebra) -
**Samantha**, Thursday, June 4, 2009 at 9:44pm
thanks =]

- Math (Algebra/Pre-Algebra) -
**Samantha**, Thursday, June 4, 2009 at 9:50pm
so a = 11 and d = 3, so 23 = 11 + (23-1) 3.

The 23rd term is 77 because 11 + 22(3) = 77 =]

## Answer this Question

## Related Questions

- math - 1. Use the given arithmetic sequence to answer the following problems. ...
- Algebra - True or False 1. – 5, – 5, – 5, – 5, – 5, … is an arithmetic sequence...
- Math ( Can You check my Work?) - 1.an = 3n - 1 2. an = 2(2n - 3) 3.an = 4^n 4.an...
- Sequence - Find the common difference and a formula formula for the nth term of ...
- math - Hi I need someone to check my answers I'll show whatever work I have but ...
- Mathematics : Arithmetic Sequence - The 5th term and the 8th term of an ...
- My Retyped Algebra Post - 1. Use the arithmetic sequence of numbers 2,4,6,8,10...
- algebra - I have 3 questions I need help with. 1) what is the 15th term of the ...
- algebra - Could someone check my work; 1. Generate the first five terms in the ...
- math - find the rule for the Nth term of the arithmetic sequence. 11/2, 25/6, 17...