Posted by **Shawntrell** on Saturday, October 30, 2010 at 10:09pm.

The first term of an arithmetic sequence is -3 and the fifteenth term is 53.

What is the common difference of the sequence?

14/13

25/7

4

- arithmetic -
**Reiny**, Saturday, October 30, 2010 at 10:28pm
Use your definitions of the term of an arithmetic sequence

a = -3

term(15) = a + 14d

53 = -3 + 14d

solve for d

- arithmetic -
**whitney**, Friday, October 7, 2011 at 10:23am
is this following sequence arithmetic is so identify the common difference

-73,-44,-15,14

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