Question

If the cost of producing a product that sells for $50 is 120,000 plus $20.00 per piece, then how many products must be sold to breakeven?

Answer 1

let
x--------->number of products
y1--------> the cost of producing a product
y2------> the cost of sell a product

we know that
y1=120,000+20x-------> equation 1
y2=50x------> equation 2

equate equation 1 and equation 2
120,000+20x=50x
50x-20x=120,000
30x=120,000
x=4000

the answer is
4000 pieces