SOLUTION: Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even? C(x)=9000x + 45,000 R(x)=12,000x

Algebra ->  Expressions-with-variables -> SOLUTION: Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even? C(x)=9000x + 45,000 R(x)=12,000x      Log On


   

Question 29374: Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even?
C(x)=9000x + 45,000
R(x)=12,000x
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
if you wanted the values for C(x) and R(x) to equal the same, then you would combine
R(x)=12,000x
C(x)=(-1)9000x + (-1)45,000 --multiply by (-1) and (-1) to get 1 on one side
C(x)=-9,000x-45,000
3,000x-45,000=0 --combine
3000x=45000 --add 45000
x=15 --divide by 3000