Homework Help: arithmetic

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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