SOLUTION: Consider the arithmetic sequence that begins with the numbers 15 and 21. What is the 10th number in this sequence?

Question 753041: Consider the arithmetic sequence that begins with the numbers 15 and 21. What is the 10th number in this sequence?
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
Q:
Consider the arithmetic sequence that begins with the numbers 15 and 21. What is the 10th number in this sequence?
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A:
First term: = 15
Common difference, d = 21 - 15 = 6
nth term: =
=
=
10th term: = 6(10) + 9 =
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