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| Question 1096965:  Mary has accepted a teaching job that pays $25,000 for the first year. According to the Teacher's Union, Mary will get guaranteed salary increases of 3% per year. If Mary plans to teach for 27 years, what will be her total salary earnings?
 Answer by Boreal(15235)
      (Show Source): 
You can put this solution on YOUR website! Sum of a geometric series with ratio=1.03 S=A(1-r^n)/(1-r). n=27, r=1.03
 S=25000(1-(1-0.03^27))/(1-(1.03)); the fraction is 40.709, but round at end
 S=$1,017,740.84
 Rough check. Without the increase in salary, $25,000 for 27 years is $675,000.
 
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