Posted by Amy on Monday, September 5, 2011 at 6:22pm.
invested 2000
gains 0.2 every odd numbered month
gains 0.15 every even numbered month
write function for n months?
i've tried solving this with a formula, but every formula i come up with is wrong.
Could someone tell me how to solve this and plug in the right numbers into a formula?
**i already posted this but without the % for even numbered months. should there be two different formulas for even and odd months?

MATH  Amy, Monday, September 5, 2011 at 6:32pm
For the first five months algebrically i got:
1: 2400
2: 2040
3: 2448
4: 2080.8
5: 2496.96
i tried using this formula:
2000(1+0.2)^n
when i plugged in 1 for n i got 2400.
however, when i plugged in 2 for n i got 2880. which isn't right.
so i changed the formula to 2040(1+ .2)^1 I got the right answer
but is there a simple formula where i can just plug in the "n" and get the right amount?

MATH please help  Amy, Monday, September 5, 2011 at 8:41pm
should i repost this?
Answer This Question
Related Questions
 Math please help!  invested 2000 gains 0.2 every odd numbered month gains 0.15...
 Math  invested 2000 gains 0.2 every odd numbered month final value after first ...
 mathamatics  on december31, 1995, paul invested $2000 in a stock. his stocker ...
 Math (Problem Solving)  Sasha took in a car loan with a maturity of 5 years in ...
 personal finance  in this problem: if you wanted to put aside $2,000 a year for...
 Problem solving  I was watching the street, there were mopeds(2 wheels) bikes(2...
 Find the pattern problem solving  I was watching the street, there were mopeds...
 math  Blair opens his investment account with $500. He loses $15.45 the first ...
 Math  Grade 5  After saving 4/5 of his salary every month, Zacky has $150 left...
 math  a gym membership charges a 100 dollars as an initial fee plus 25 dollars ...
More Related Questions