Question

What is the next number in the arithmetic sequence below

Answer 1

Answer:

D

Step-by-step explanation:

The common difference d, between the terms is

d = - 9 - 3 = 3 - 15 = 15 - 27 = - 12

To find the next term in the sequence subtract 12 from the previous term

⇒ - 9 - 12 = - 21 ← is the next term in the sequence

Answer 2

Answer:

Step-by-step explanation:

The answer is D.The reason is because as you keep adding 12,it makes the next number.See this is how it goes 3+12=15,15+12=27.So that means that negative 9 plus 12 is 21 so That is probably what I would say.

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