Sum = n/2[2a + (n - 1)d] where a = first term, n = number of terms and d = common difference
(a) 30/2(2 x 5 + (30 - 1) x d) = 1455
10 + 29d = 1455 / 15
29d = 97 - 10
d = 87 / 29 = 3
(b) 7/2(2 x 9 + (7 - 1)d) = 0
18 + 6d = 0
6d = -18
d = -3
Using the same numbers u started out with
<span>Niko Bought 4 stamps each week for 3 weeks. He wants to put 6stamps on each page of his album. How many pages will niko use. 2</span>
4x3=12
12/6=2
Answer:
the question is incorrect.
