Sekai

Ohm, could you write that as a function ?

We have :

the legnth ; a

height ; b

depth : c

When we stack them only a will change. 

A(a,b,c) = a*b*c

A1(a₁ b₁ c₁ ) = 28 * 20 * 15 = 8.400

A2 (a₂ b₂ c₂ ) = (1.5*x) * 19.3 * 14.2 

x ; Equals the time you should stack them. 

A2 (a₂ b₂ c₂ ) = (1.5*17) * 19.3 * 14.2 = 6988,53 

b and c is constant. 

We look if we have these requirements. 

b₁ => b₂

20 => 19,3

c₁ => c₂

15 => 14.2

If yes, then we have to look at a.

 a₁ => a₂ 

 a₁ => 1.5*x

And since 

a₁ => 1.5*17

28 => 25,5 

So the statement is true and everything is fine. 

Yessssss I was wondering the whole day about the equation since I've seen it before and it was more like the second one. 

I am sry for my mistake but thanks that you're so mindfully!

Well I am learning Math and Physik in german and my teacher alway say to Subscripts index so I was assuming it was the same in english haha :c 

But thanks. 

Learning by mistakes ! :D

Thank you !

(I also learned to make an index. I₁ <-- haha.)

The 1 at I1 and the 2 at I2 are just an index. In this exaple I1 is electricity number 1 and I2 is electricity number 2 :)!

Theoretical I could write : 0 = y/r - x/r+d 

and now I want to solve for r :3