A laptop computer is purchased for $2100. After each year, the resale value decreases by 30% . What will the resale value be after 3 years?

Question

anonymous · Answer

.30 * 2100=630 so 
2100 - 630 = 1470. After 1 year it's worth 1470$.
Year2: 1470*.30 =441
1470-441 = 1029. Thats the cost at the end of year two.
Now year 3. 
1029*.30 = 308.7
so 1029-308.7=720.3$
So after 3 years the computer is worth $720.3

anonymous · Answer

are you super positive this is right?

anonymous · Answer

All my work is right there.^

anonymous · Answer

ok. thank you Nathan!

amistre64 · Answer

the question is rather vague;  is it a straight-line depreciation?  or a recurrsion process like Nathan did?

anonymous · Answer

recurrsion