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Mathematics 18 Online
OpenStudy (anonymous):

Please help! Justine earned $27,000 during the first year of her job at city hall. After each year she received a 2% raise. Find her total earnings during the first five years on the job.

OpenStudy (anonymous):

@tcarroll010

OpenStudy (anonymous):

@amistre64

OpenStudy (anonymous):

@Luigi0210

OpenStudy (anonymous):

in Justine

OpenStudy (anonymous):

What?

OpenStudy (anonymous):

yup

OpenStudy (anonymous):

im Justine

OpenStudy (anonymous):

Yeah ok....

OpenStudy (anonymous):

hi

OpenStudy (anonymous):

Dude don't comment if you're not gonna help.

OpenStudy (anonymous):

sorry

OpenStudy (anonymous):

I love cheese

OpenStudy (amistre64):

27 + 27(.02) + 27(.04) + 27(.06) .... etc

OpenStudy (anonymous):

@amistre64 I figured it out. Thanks for helping! :)

OpenStudy (amistre64):

i forgot to include the 1s lol

OpenStudy (anonymous):

haha it's cool. I found a formula to use. sum = a (1-r^n)/(1-r)

OpenStudy (anonymous):

a = 27000 r = 1.02 n= 5

OpenStudy (amistre64):

yeah, thats the one M(1.02) + M(1.02)^2 + M(1.02)^3 ... good job

OpenStudy (anonymous):

Thanks :)

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