Zenuko13 Zenuko13

27-12-2020
Mathematics

contestada

What is the common difference of the sequence 3, 12, 21, 30, 39?
A. 4
B. 11
C. 10
D. 9

Respuesta :

ChoiSungHyun ChoiSungHyun

27-12-2020

Step-by-step explanation:

3 + 9 = 12,

12 + 9 = 21,

21 + 9 = 30,

30 + 9 = 36.

The common difference is 9. (D)

Answer Link

cmbrown30662 cmbrown30662

22-02-2021

Answer:

(d)-9

Step-by-step explanation:

12 – 3 = 9, 30 – 21 = 9, etc.

Answer Link

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