A laptop computer is purchased for $2500. After each year, the resale value decreases by 25%. What will the resale value be after 3 years?

Question

anonymous · Answer

well, what do you  think it would be?

anonymous · Answer

I don't know how to work out the equation. Which is why I asked.

jordans_openstudy · Answer

wouldn't it be 625?

anonymous · Answer

okay, well im going to try to help you to work this problem okay

anonymous · Answer

the resale value decreases by 25% each year.

25% = 25/100 = 0.25

year = x
So 0.25x

decreases = -

So your equation would be: 

(Starting value) - the change we found above.

plug in what you know and solve.

anonymous · Answer

well she did it for me! lol thanks @PsychoTink

anonymous · Answer

Sorry, that must have all happened while I was typing. Didn't mean to steal your thunder.

anonymous · Answer

So you would do .25(3) which is .75

anonymous · Answer

it was okay hun :)

anonymous · Answer

I skipped a part....

anonymous · Answer

So total it will decrease 75% ?

anonymous · Answer

@sidney_girl1419 you might want to take over after all. I messed it up.

anonymous · Answer

@PsychoTink you didnt mess up at all.

anonymous · Answer

I think where I went wrong is that x should be the starting value, not year. And then you would multiply by 3. I've confused myself now.

anonymous · Answer

so you would multiply by .75 and then get 1,875 and subtract that from the original and get 625

anonymous · Answer

right?

anonymous · Answer

@ariabstr yes thats right

anonymous · Answer

Oh, I see where I confused myself now. Thanks for saving us all @sidney_girl1419

anonymous · Answer

your welcome guys. :) could i have a medal for helping yal out?