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Mathematics 13 Online
OpenStudy (anonymous):

The original purchase price of a car is 14000 Each year its value depreciates by 10%. Three years after its purchase, what is the value of the car? a. $11,340 b. $10.206 c. $14 d. $18,634

OpenStudy (anonymous):

@sourwing @sammixboo @zale101 @triciaal ?

OpenStudy (anonymous):

28000 but is not the answer

OpenStudy (anonymous):

C) 14 the answer?

OpenStudy (anonymous):

hmmm Idk

OpenStudy (anonymous):

Im going with B.

OpenStudy (anonymous):

Goodluck

OpenStudy (triciaal):

it's an exponential function

OpenStudy (anonymous):

triciaal will help you :)

OpenStudy (triciaal):

the alternative to plugging into the formula is to do find 90% of the original then that is the new amount the 2nd year take 90% then the third time another 90%

OpenStudy (triciaal):

start with 14000 loose 10% so value is 14000*(100%-10%)= 12600 start 12600 loose 10% =

OpenStudy (triciaal):

* lose

OpenStudy (anonymous):

Nice teaching

OpenStudy (triciaal):

thanks look up the formula don't remember it right now

OpenStudy (anonymous):

C)$11,340 @triciaal?

OpenStudy (triciaal):

that's the 2nd year the question asked for after the 3rd so do it again

OpenStudy (triciaal):

remember to look up the formula so you can use it next time

OpenStudy (anonymous):

B)$10,206 @triciaal ?

OpenStudy (triciaal):

yes |dw:1418538606557:dw|

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