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Mathematics 16 Online
OpenStudy (ihelpyou_youhelpme):

Suppose a computer valued at $2765 depreciates at a rate of 30% per year. Estimate the numbers of years it will take for the computers value to be less than 350$!! Help me...... PLs! I will give medal!

OpenStudy (griefer101):

2765x.30

OpenStudy (ihelpyou_youhelpme):

I don't get it

OpenStudy (griefer101):

your pretty much dividing 2765 by thirty

OpenStudy (griefer101):

wich would be .017

OpenStudy (agent0smith):

No, @griefer101 You'll have to use something like an exponential decay formula

OpenStudy (griefer101):

sorry already forgot that its a percent

OpenStudy (ihelpyou_youhelpme):

But the question asks for the amount of years which would either be a: 8 B:6 C:3 D:30

OpenStudy (agent0smith):

\[\Large A = P(1 - a)^t\] P is the starting amount, a is the decay rate, as a decimal NOT as a percent.

OpenStudy (ihelpyou_youhelpme):

Oh ok so then the answer is 6?

OpenStudy (agent0smith):

Idk, I didn't work it out for you, and you didn't show me any reason why it's 6.

OpenStudy (ihelpyou_youhelpme):

I worked it out, it seems like 6 is the answer thank you so much! I'll you a medal! thanks!

OpenStudy (agent0smith):

I don't think 6 is correct...

OpenStudy (ihelpyou_youhelpme):

it has to either be 6 3 8 30 I noticed the higher the number the smaller the number is When I plug 6 in I get 325, which is maller that 350. 8 Is even smaller, which is not what we want. And 8 is bigger than 350. which isn't what we want either. Whats the answer then can you help? @agent0smith

OpenStudy (agent0smith):

Show your work since I have no idea what you are doing.

OpenStudy (agent0smith):

Actually yes, you're correct, 6 is right.

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