The value of a car is inversely proportional it its age. If a car is worth $6400 when it is 6 years old, how old will it be when it is worth $4800?

Question

hero · Answer

Wow @paulzord , where have you been?

anonymous · Answer

6a=6400

xa=4800 

then hero beats me

hero · Answer

I didn't beat you :P

anonymous · Answer

on some holidays, avoiding maths etc

hero · Answer

avoiding math would devoid existence from being aware of itself. In other words, it's impossible to avoid math.

anonymous · Answer

evading then

anonymous · Answer

oh yeah, thanks

hero · Answer

actually, I'm missing a variable: 

$$b = \frac{k}{a}$$

where a = years of car
          b = price of car

hero · Answer

So now, solve for k, then input the components to find k: 

$$ab = k$$$$(6400)(6) = k$$

hero · Answer

38400 = k

hero · Answer

So if b = 4800, then a = 

$$a = \frac{38400}{4800} = 8$$

Therefore, the car will be 8 years old if its price is $4800

hero · Answer

btw, what does spriteness mean?

anonymous · Answer

it's just some random nonsense i made up

hero · Answer

Shucks, I was hoping I could add a word to the Urban Dictionary.