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Kobe
10-14-2007, 07:17 PM
Ahh my exam is tomorrow and I can't figure out a few things, the first one has to be with elasticity...

Here is the question

Consider the price of elasticity between points A and B equals

A) 10%
B) 1.
C) .4
D) 4.
E) 4%

Now the answer is suppose to be .4 but I have no idea how to get it, any help??

http://img80.imageshack.us/img80/3284/econgraphpe9.png


EDIT: finally figured this one out

10/25 = .4
20/20 = .1 = .4
----------------------------------------------------------------------------------

I also have a question about taxes...

Qd = 45
Qs = 110


Qd = 200 - 2pc
Qs = 20 +2 (Pc+T)
200 - 2pc = 20 + 2Tq (pc-t)
180 +2T = 4PC
Here is what I get lost.. Tax is suppose to equal 10..

Here is another one

Qd = 300 - 2P
Qs = 50 +Ps

Qd - 250 - 50+3P
P = 83.3333

Now taxes..

Qs = 50+Ps
Qd = 300-2(ps+t)

50 + ps = 300 - 2ps - 2t
3ps = 250 -2T
Not exactly sure what to do here to solve the problem..

Ahhh midterm is tomorrow, any help would be great full!

Kobe
10-15-2007, 11:53 AM
Ahh exam in 30minutes and I couldn't figure it out, o well
Hopefully i get part marks lol