delgadogizz43 delgadogizz43

19-04-2018
Mathematics

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What is the common difference for this arithmetic sequence?

45, 39, 33, 27, 21, ...
A. 45
B. –6
C. 6
D. 39

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obsessivebookworm obsessivebookworm

19-04-2018

B. -6
The numbers in the equation are decreasing meaning that the common difference must be a negative number.

Answer Link

mathstudent55 mathstudent55

30-06-2022

Answer:

-6

Step-by-step explanation:

To find the common difference, subtract a number from the next number.

39 - 45 = -6

You can use any two consecutive terms. The result will be the same.

For example, 21 - 27 = -6

Answer: -6

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