Asked by really need help...
                Supppose you work for a company that has a 401k plan. Your first-year annual salary is $28,200 and you are contributing 10% of your monthly paycheck onto your 401k.
Write a rule for the amount of money contributed to the plan after "n" months.
Suppose your salary inreases by $1400 each year. Write a rule to describe your salary during the "n"th year.
            
        Write a rule for the amount of money contributed to the plan after "n" months.
Suppose your salary inreases by $1400 each year. Write a rule to describe your salary during the "n"th year.
Answers
                    Answered by
            Emi
            
    U need to try and figure it out and then ask if it is right. Jiskha is not a tell u the answer website. It is a try and then ask!! OK!!!  Now figure it out then ask and then I will help u!! GOOD LUCK!
    
                    Answered by
            really need help...
            
    well for the first one...i came up with 
a sub n= 28,200x(.1) to the (n-1) power
is that right?
    
a sub n= 28,200x(.1) to the (n-1) power
is that right?
                    Answered by
            Damon
            
    Ah, your monthly salary is 28,200/12 and it is the monthly, not yearly figure you need for the first part.
    
                    Answered by
            Emi
            
    yes!!! it is. GREAT JOB!!! See u knew the answer the whole time all u needed to do was to try.  If you ever need help again I will be on!!
Emi
    
Emi
                    Answered by
            Damon
            
    Now we all wish it worked by a power law like that but unfortunately it is just the same amount every month
that amount the first month
that again for a total of 2 thats
that a third time for a total of 3 thats
    
that amount the first month
that again for a total of 2 thats
that a third time for a total of 3 thats
                    Answered by
            Damon
            
    Now do the second part the same way, except now it does indeed go by years.
Again it increases by a constant amount every time period, not by a percentage of the previous amount. That makes it much simpler than it would be otherwise.
    
Again it increases by a constant amount every time period, not by a percentage of the previous amount. That makes it much simpler than it would be otherwise.
                    Answered by
            really need help...
            
    okay so if it says ...how much will u have ontributed to the plan after 6 months...should i do:
28,200/12 x (.1)to the n-1 power
or should i not divide by 12?
    
28,200/12 x (.1)to the n-1 power
or should i not divide by 12?
                    Answered by
            Damon
            
    It is not to the power at all
it is just the number of month times the contribution every month which is 2350 times n
    
it is just the number of month times the contribution every month which is 2350 times n
                    Answered by
            Damon
            
     Now the second one is the same theory, again nothing to a power. 
first column year
second column salary
1 28,200 salary increases by $1400 each year.
2 28200+ 1400=29600
3 28200+ 2*1400 =31000
4 28200+ 3*1400 =32400
....
n 28200+(n-1)*(1400)
    
first column year
second column salary
1 28,200 salary increases by $1400 each year.
2 28200+ 1400=29600
3 28200+ 2*1400 =31000
4 28200+ 3*1400 =32400
....
n 28200+(n-1)*(1400)
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