Jerry deposited $20,000 on an investment that will give $1,750 for every year that his money stays in the account. how much money will he have in his account by the end of year 8

the interest rate is 8.75%

Amount=20000(1+8.75%/100)  into power of time 8

=39125.88

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb