Question

Help with arithmetic series

Answer 1

first calculate the formula for the arithmetic series

Answer 2

an = a1 + (n-1)d = ?

Answer 3

okay so

Answer 4

a1 would be the first value right

Answer 5

yes

Answer 6

so 3?

Answer 7

yes

Answer 8

okay and an would be 365 ?

Answer 9

leave an and n alone

Answer 10

Because that is how many days there are in one year

Answer 11

ohh okay..

Answer 12

So just use the a1 value of 3

Answer 13

also find d

Answer 14

what does d stand for again in our equation

Answer 15

the common difference

Answer 16

well its adding 3?

Answer 17

good so d = 3

Answer 18

an = 3 + (n-1)3

now we use the sum formula for n = 365

Answer 19

okay so 3+(365-1)3 right

Answer 20

^ calculate an for n = 365 then use the above formula

Answer 21

so is the equation I wrote right for me to solve

Answer 22

start with this an = 3 + (n-1)3

Answer 23

then find sn

Answer 24

well I would substitute in 365 right

Answer 25

yes

Answer 26

an = 3 + (n-1)3
an = 3 + (365-1)3
an = 3 + (364)3
an = 3 + 1092
an = 1095

Answer 27

good now find sn

Answer 28

1095/2(3+3)
547.5*6
3285

Answer 29

n = 365
an = 1095
a1 = 3

calculate sn

Answer 30

365/2(3+1095)
182.5*1098
200385

Answer 31

good, and 200385 pennies is worth...?

Answer 32

umm 200 dollars

Answer 33

or 20000

Answer 34

be exact please

Answer 35

hint: 100 pennies = 1 dollar

Answer 36

2003.85

Answer 37

good so that's your answer, 2003.85