Respuesta :
Answer:
Step-by-step explanation:
The break-even point is the point at which income equals expenses.
Let that number of books sold be x
Printing costs = 13200 + 25x
Book sale = 40x
At break-even, the printing costs is the same as book sale.
13200 + 25x = 40x
15x = 13200
x = 13200/15 = 880
Let that be x
[tex]\\ \rm\Rrightarrow 13200+25x=40x[/tex]
[tex]\\ \rm\Rrightarrow 40x-25x=13200[/tex]
[tex]\\ \rm\Rrightarrow 15x=13200[/tex]
[tex]\\ \rm\Rrightarrow x=13200/15[/tex]
[tex]\\ \rm\Rrightarrow x=880[/tex]