To find how many books can be printed for $4,000, you need to use an equation that correctly represents the total cost based on the given pricing structure.
The cost structure is:
- A fixed charge of $800.
- A variable charge of $5 per book, which we'll represent as \( x \) (the number of books).
The correct equation is:
\[ 800 + 5x = 4000 \]
So the first option you provided is the correct equation to solve for \( x \) (the number of books). The other options are not correct formulations for this scenario.
To find the number of books, you would solve the equation:
-
Subtract $800 from both sides: \[ 5x = 4000 - 800 \] \[ 5x = 3200 \]
-
Divide by 5: \[ x = \frac{3200}{5} \] \[ x = 640 \]
Thus, Pizzazz Publications can print 640 books for $4,000.