John and Sara's purchase at the school bookstore

What is the cost of one notebook at the school bookstore?

John and Sara each bought the same type of pen and notebook in the school bookstore. John paid $5.55 for two pens and three notebooks, while Sara paid $3.50 for one pen and two notebooks. How much does the school bookstore charge for one notebook?

Answer:

One notebook costs $1.45 in the school bookstore, as John and Sara purchased it along with a pen.

John and Sara each bought one notebook and a pen at the school bookstore. The total cost of their purchases was $1.45. To determine the cost of one notebook, we need to analyze the equations based on their purchases.

John spent $5.55 on two pens and three notebooks, which can be represented by the equation 2y + 3x = 5.55, where y is the cost of one pen and x is the cost of one notebook.

Similarly, Sara spent $3.50 on one pen and two notebooks, which can be represented by the equation y + 2x = 3.50.

By solving the equations simultaneously, we find that the cost of one notebook at the school bookstore is $1.45.