How to write an expression from a word problem - Answers to homework

The video tutorial explains how to write an expression for the total cost of buying hardcover and paperback books from a used bookstore. It identifies variables for the number of books, explains the cost of each type, and demonstrates how to calculate the total cost using multiplication. The final expression combines the costs of hardcover and paperback books to find the total cost.

What is the cost of one hardcover book?

• $3.00

• $2.50

• $0.50

• $1.50

If you buy two hardcover books, what will be the total cost?

• $4.00

• $6.00

• $5.00

• $3.50

How do you calculate the total cost of hardcover books?

• Divide the number of books by $2.50

• Subtract $2.50 for each book

• Multiply the number of books by $2.50

• Add $2.50 for each book

How much does one paperback book cost?

• $0.75

• $1.00

• $1.50

• $0.50

What is the total cost of buying three paperback books?

• $2.50

• $1.50

• $2.00

• $1.00

What is the expression for the total cost of buying H hardcover and P paperback books?

• 2.50H + 0.50P

• H + P

• H - P

• 2.50P + 0.50H

What does the variable P represent in the expression?

• Number of paperback books

• Number of hardcover books

• Price of hardcover books

• Price of paperback books