Can I get help on this solved problem?

Question

anonymous · Answer

Michelle is debating between two different mortgages for $184,000. She found a 20-year fixed rate loan at 7.05% and 15-year fixed rate loan at the same rate. How much more interest will she pay for the 20-year loan versus the 15-year loan? 

 

For the 20 year loan I got 1432.10 
for the 15 year loan I got 2773.10 

How would I solve for the difference

anonymous · Answer

do I just subtract, because I did and I got it wrong.

anonymous · Answer

theres a formula

mertsj · Answer

That doesn't seem like nearly enough interest for 20 years on $184,000

anonymous · Answer

20*.0705*184k-(15*.0705*184k)=?

anonymous · Answer

umm Ok thomasj your formula confuses me

anonymous · Answer

A=p(1+r?n) ^nt ,
a= amount of 4 in the bankaccount
P= principal ( or amount invested)
r= yearly rate of interest ( as a decimal)
n=# of times each year that interest is  coumpouded 
t=3 of years involved

anonymous · Answer

A=P(1+r/n)^nt

anonymous · Answer

|dw:1337978641713:dw|I used

To get my monthly payments