Suppose that Saleem has money in a savings account that pays him interest of5% per year on the account balance. Now, Saleem takes out $50 a month for various frivolities, and his mother secretly deposits $240 every 6 months into his savings account. Assuming that interest is paid and money is deposited and withdrawn from the account in a continuous fashion, the balance B = B(t) (in dollars) remaining in Saleem's savings account at time t (in months) is best modeled by the differential equation: (see attachment)

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anonymous · Answer

attachment

anonymous · Answer

help!?

anonymous · Answer

hmm i am actually trying to do it but i dont know the words are kind of confusing me

anonymous · Answer

oh ok.

anonymous · Answer

just give me a moment i think i got it

anonymous · Answer

alright. :)

anonymous · Answer

let me tell you what i did so far we know the compounded formula function is A=p(1+r)^n

in this case it is B=50(1 + 0.05/12)^12t this is compounded monthly now i need to subtract it by what his mom gives thats the only confusing part then i have to find the derivative of that

anonymous · Answer

i want to go with B my instincts tell me its that but i need to prove that somehow lol is this part of like an online thing?

anonymous · Answer

yes but it only asks me for an answer.

anonymous · Answer

so I don't have to prove it.

anonymous · Answer

is it for marks? yeah i didnt get to B but somehow i think it is

anonymous · Answer

one wrong won't hurt me anyway.

anonymous · Answer

marks?

anonymous · Answer

try B lets hope its right

anonymous · Answer

sorry if its wrong i cant get to the answer we need to make a function first hen derive it

anonymous · Answer

yes! It was B! so, did anybody tell you, you are a genius? :)

anonymous · Answer

LMAO awesomee haha :P

anonymous · Answer

glad to help it was the closest i could get too

anonymous · Answer

well, thanks.