Consider the arithmetic sequence 3,8,13,18 find S15
1 answer:
Answer:
This is an arithmetic sequence since there is a common difference between each term. In this case, adding
5
to the previous term in the sequence gives the next term. In other words,
a
n
=
a
1
+
d
(
n
−
1
)
.
Arithmetic Sequence:
d
=
5
This is the formula of an arithmetic sequence.
a
n
=
a
1
+
d
(
n
−
1
)
Substitute in the values of
a
1
=
3
and
d
=
5
.
a
n
=
3
+
(
5
)
(
n
−
1
)
Simplify each term.
Tap for more steps...
a
n
=
3
+
5
n
−
5
Subtract
5
from
3
.
a
n
=
5
n
−
2
Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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Answer:
20% of 40 is 8
Answer:
Step-by-step explanation:
a3 = 2
d = -5
=============
a4 = a3 - 5
a4 = 2 - 5
a4 = - 3
===============
a5 = a4 - 5
a5 = -3 - 5
a5 = - 8
Just take a4 as your answer.
So,
3/5 x 1/5 = 3/25
3/25 + 1/5 = 8/25
8/25 x 73/3 = 7 59/75
I hope this helps