PLEASE HELP! BEST ANSWER GETS A MEDAL!!

Question

anonymous · Answer

attachment

campbell_st · Answer

you need to equation for both methods of production. 

then equate the equations since costs will be equal, and solve for the number of books. 

where are you having difficulty?

anonymous · Answer

The whole thing. I don't know how to do it.

campbell_st · Answer

ok.... let b = books 

the 1st cost equation is 

C = 21.25b + 19398

read the question and see if you can find the 2nd cost equation 

C = ?b + ???

anonymous · Answer

let B be for number of books sold
method 1
cost_1=19398+21.25*B
method2
cost_2=43996+9*B
---------------------------------
to find the number of B where
 cost_1=cost_2
19398+21.25*B==43996+9*B
21.25B-9B=43996-19398
B=(43996-19398)/(21.25-9)

campbell_st · Answer

there you go, someone always gives the answer

no need to worry about understanding

anonymous · Answer

Did you get 2008?

anonymous · Answer

Abb1 can you do one more for me?