166k views
3 votes
Math help pls, lol thank you will reward :]

Math help pls, lol thank you will reward :]-example-1
User Bakercp
by
7.9k points

1 Answer

4 votes

Answer:

A. 94

Explanation:

The nth term of an arithmetic sequence is:

an = a₁ + d (n − 1)

where a₁ is the first term,

and d is the common difference.

We're told the first term is 40, and the 7th term is 121. Therefore:

121 = 40 + d (7 − 1)

121 = 40 + 6d

81 = 6d

d = 13.5

So the fifth term is:

a₅ = 40 + 13.5 (5 − 1)

a₅ = 40 + 54

a₅ = 94

User Industrial
by
8.2k points