Answer:1/5 you can buy 1/5
Step-by-step explanation:
Answer:
First term (a) =8
Common difference (d)= t2-t1
=12-8
=4
Now, sum of first 31th term (tn31) =n/2{2a+(n-1)d}
= 31/2{2×8+(31-1)4}
=31/2{16+(30×4)
=31/2(16+120)
=31/2×126
=31×63
Step-by-step explanation:
Similarly use 19 as (n) for the 19th term
Answer:
Sam is 12 years then
Step-by-step explanation:
Sam's age =15-3
=12 years
9,12,18 is a right triangle and so is 30,72,90
