Answer: 3
Step-by-step explanation: double the 5 and the 4(to have the same denominator as the 8)
Answer:
d = 
Step-by-step explanation:
The nth term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Given a₉ = 16 , then
- 12 + 8d = 16 ( add 12 to both sides )
8d = 28 ( divide both sides by 8 )
d =
= 
Answer:
15 and 6
Step-by-step explanation: