IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => IGCSE/ GCSE => Sciences => Topic started by: Simona 1234 on May 17, 2010, 07:20:20 pm

Title: PLEASE PLEASE PLEASE I NEED HELP
Post by: Simona 1234 on May 17, 2010, 07:20:20 pm
PLEASE guys .... i am really confused with math .... i have an exam on WED and my book doesn't contain the COMPOUND INTEREST formulae .. please can any1 write the formula with some explanation ???????  i will really appreciate it   :'(
Title: Re: PLEASE PLEASE PLEASE I NEED HELP
Post by: abody158 on May 17, 2010, 07:24:04 pm
never heard of COMPOUND INTEREST in my whole life

iam not sure  :-X
Title: Re: PLEASE PLEASE PLEASE I NEED HELP
Post by: Kim on May 17, 2010, 07:24:48 pm
PLEASE guys .... i am really confused with math .... i have an exam on WED and my book doesn't contain the COMPOUND INTEREST formulae .. please can any1 write the formula with some explanation ???????  i will really appreciate it   :'(

dont worry
ill tell ya
give me a few min
ill go get mths txt bk
Title: Re: PLEASE PLEASE PLEASE I NEED HELP
Post by: Kim on May 17, 2010, 07:27:50 pm
sorry cant find it n i dont remember it right now
Title: Re: PLEASE PLEASE PLEASE I NEED HELP
Post by: Kim on May 17, 2010, 07:30:24 pm
i m not sure but i think it is P(1+(R/100))^n
r-rate
n-for how many years
Title: Re: PLEASE PLEASE PLEASE I NEED HELP
Post by: princess12 on May 17, 2010, 07:32:05 pm
kim i think u r correct for the formula
Title: Re: PLEASE PLEASE PLEASE I NEED HELP
Post by: $H00t!N& $t@r on May 17, 2010, 07:33:21 pm
compound interest= A(1+r)^n
where A= Amount invested
R= rate (the percentage value so if it is 10% then write it as 0.1 in the equation)
n=number of years
Title: Re: PLEASE PLEASE PLEASE I NEED HELP
Post by: Simona 1234 on May 17, 2010, 07:35:35 pm
i m not sure but i think it is P(1+(R/100))^n
r-rate
n-for how many years
thxxxxx ..... well !! is that all i need to know ... or there is smthn extra !!!!! but rly thxxx  ;)
Title: Re: PLEASE PLEASE PLEASE I NEED HELP
Post by: $H00t!N& $t@r on May 17, 2010, 07:36:13 pm
oops dint c u already answered kim
Title: Re: PLEASE PLEASE PLEASE I NEED HELP
Post by: Kim on May 17, 2010, 07:39:32 pm
hey no prob at all