Solution Of Arithmetic Sequence 3,12,21,_,_,_

Solution of arithmetic sequence 3,12,21,_,_,_

 

Answer:

3, 12, 21, 30, 39, 48

Step-by-step explanation:

Use the arithmetic sequence formula an = a1 + (n - 1)d

Whereas:

• an = missing term
• a1 = first term
• d = common difference (a2 - a1)

First find the 4th term of the sequence

• an = a1 + (n - 1)d
• a4 = 3 + (4 - 1)9
• a4 = 3 + (3)9
• a4 = 30

You can find the next term by using arithmetic sequence or adding the next term with 9