write there arithmetic sequence with 30 as the the sum of the first five terms x
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Answered by
2
Answer:
heya ❤️
Step-by-step explanation:
The formula says that the sum of the first n terms of our arithmetic sequence is equal to n divided by 2 times the sum of twice the beginning term, a, and the product of d, the common difference, and n minus 1.
hope it helps ✅
Answered by
1
Answer:
sum(5) = (5/2)(2a + 4d) = 30
2a + 4d = 12
a + 2d = 6
a = 6-2d
so we can assign any value to d
e.g. d = 7
then a = 6-14 = -8
one possible sequence is:
-8 , -1, 6, 13, 20
(their sum is 30)
let d = 3
a = 6-6 = 0
terms are:
0, 3, 6, 9, 12
(their sum is 30)
I think it is helpful for you
Step-by-step explanation:
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