Posted by Meghan on Monday, August 1, 2011 at 7:28pm.
Okay, I need to find the 101th term of the sequence 5,9,13,17,21...
Do I do this:
a1 + (n1)d
SO...
5+(1011)4
5+(100)4
105x4
420
Did I do this problem correctly?

Math  MathMate, Tuesday, August 2, 2011 at 9:08am
Almost!
First, check your formula against values:
a1+(n1)d
where a1=5, d=4, and n=term number
For the first term, n=1
5+(11)*4=5 correct
For the third term:
5+(31)*4=5+2*4=13 correct.
So there is a good chance the formula.
Now do the calculations for the 101th term:
5+(1011)*4
=5+100*4
Remembering that in all calculations, the priority of operations is in the order:
()
* or ÷
+ or 
So we need to multiply before add, or
5+100*4
=5 + (100*4)
=5 + 400
= 405
Answer This Question
Related Questions
 Quick math help  Find the tenth term of the sequence: 6,1,8... Is it 57? For ...
 Quick Math Help  Find the tenth term of the sequence: 6,1,8... Is it 57? For ...
 Quick math help  Find the tenth term of the sequence: 6,1,8... Is it 57? For ...
 MATH  In an arithmetic sequence, the first term is 100 and the sixth term is 85...
 Math  How we find the 101th term in terms of x (n+1)x + (1 + 2(n1))
 Math  1. Find the 12th term of the arithmetic sequence 2, 6, 10, … . 2. Solve ...
 Urgent math  how do I do this can any body show me how? An arithmetic sequence ...
 Math  A sequence is formed by adding together the corresponding terms of a ...
 math  find the rule for the Nth term of the arithmetic sequence. 11/2, 25/6, 17...
 Math  Alpha writes the infinite arithmetic sequence 10, 8, 6, 4, 2, 0... Beta ...
More Related Questions