Question

What is the 48th term in the sequence?

11.5, 19, 26.5, 34, 41.5, . . .

Answer 1

u have an arithmetic sequence with a common difference of 7.5

an = a1 + (n - 1) * d
a1 = first term = 11.5
n = term to find = 48
d = common difference = 7.5
now it is just a matter of subbing
a48 = 11.5 + (48 - 1) * 7.5
a48 = 11.5 + 47 * 7.5
a48 = 11.5 + 352.5
a48 = 364 <=== ur 48th term