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Question 4. If an arithmetic sequence has terms a5 = 20 and a9 = 36, what is a15? 50 56 60 80
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1 vote
Question 4.

If an arithmetic sequence has terms a5 = 20 and a9 = 36, what is a15?

50
56
60
80

User Fromanator
by
7.8k points

2 Answers

5 votes

Answer: 56

Explanation:

User BruceBerry
by
8.0k points
4 votes

the correct answer is 60 because

a5=20

(4) × 5=20

a9=36

4 × 9= 36

therefore :

a15 = 4 × 15

= 60

User Bvz
by
8.2k points
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