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Mathematics 10 Online
OpenStudy (vera_ewing):

Check my answer please.

OpenStudy (vera_ewing):

Jennifer has been saving for college for 57 months. The first month, she saved $11. She was able to save more money each month than the month before. She ended up saving $19,779.00. How much more did she save each month? Is it $12.00?

OpenStudy (dan815):

did u do geometric series or arithmetic series

OpenStudy (vera_ewing):

Yes. Just need to make sure it is $12.00 Can you check for me please?

OpenStudy (dan815):

the answer will be an expression like f(n) for n=the month number

OpenStudy (dan815):

every month she will save a different ammount

OpenStudy (dan815):

you have to get an expression based on the month

OpenStudy (vera_ewing):

These are my answer choices. But they don't have f(n) for n= ??? A. $11.00 B. $11.50 C. $12.00 D. $12.50

OpenStudy (dan815):

okay well lets just see what we get with an airthmetic series then

OpenStudy (vera_ewing):

What did you get?

OpenStudy (dan815):

11+(11+r) + (11+2r) + (11 + 3r)|dw:1431651284415:dw|

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