Question

Please help!

Find the 3rd term in this sequence:
tn=2n/5

Find the fifth term in this sequence:
tn=12-2n

Answer 1

to find 3rd term, put n=3 in the sequence
to find 5th term put n=5 in the sequence

Answer 2

6/5
12/5
18/5 ?

Answer 3

what do u get when u put n=3 in 2n/5 ?

Answer 4

Do you multiply 3 & 2?

Answer 5

yup

Answer 6

6n

Answer 7

6n ?

n=3 in 2n/5 gives 6/5

Answer 8

So the 3rd term would be 18/5?

Answer 9

no, we just calculated 3rd term to be 6/5

Answer 10

and to get 5th term in tn=12-2n
we put n=5
t5 = 12-2*5 =12-10=2