Question

If the 12th term of the arithmetic sequence is 15 and the 11th term is 10, find the common difference of the sequence.​

Answer 1

Answer:

12? 10 + d = 15 so d = 5.

Step-by-step explanation:

Answer 2

Answer:

d = 5

Step-by-step explanation:

The common difference d is the difference between consecutive terms, then

d = a₁₂ - a₁₁ = 15 - 10 = 5