Question

Use the information to complete the task.

Helena owns two bookshops, Betsle Books and Devon Books. She notices Betsle Books sells 23 fewer hardcover books and 30 more soft-cover
books per day than Devon Books does. Helena uses this pattern to predict the number of hardcover and soft-cover books sold by Devon Books.
Let h represent the number of hardcover books sold per day by Betsle Books.
Lets represent the number of soft-cover books sold per day by Betsle Books.
Choose all the expressions that Helena could use to predict the number of hardcover and soft-cover books sold by Devon Books.
A h-23
B. 23-h
C. h+23
D. h+30
E. S-30
G. S-
F. 30-s
H. s+ 30

Answer 1

Helena can use the following expressions to predict the number of hardcover and soft-cover books sold by Devon Books:

Number of hardcover books sold by Devon Books = h - 23

Number of soft-cover books sold by Devon Books = S + 30

Explanation:

1. The problem states that Betsle Books sells 23 fewer hardcover books and 30 more soft-cover books per day than Devon Books does.

2. Let h represent the number of hardcover books sold per day by Betsle Books, and S represent the number of soft-cover books sold per day by Betsle Books.

3. Helena can use this pattern to predict the number of hardcover and soft-cover books sold by Devon Books.

4. To find the number of hardcover books sold by Devon Books, Helena can subtract 23 from the number of hardcover books sold by Betsle Books. Therefore, the expression she could use is h - 23.

5. To find the number of soft-cover books sold by Devon Books, Helena can add 30 to the number of soft-cover books sold by Betsle Books. Therefore, the expression she could use is S + 30.

6. None of the other expressions listed (B, C, D, E, F, G, or H) represent the correct patterns for predicting the number of hardcover and soft-cover books sold by Devon Books based on the information given.