Question
Book Store A sells 25 books for a total of $393.75. The equation y = 5.25x represents the cost of buying x books from Book Store B.
Select the options that correctly complete the sentences.
Part A
The price per book at Book Store
A
is higher.
Part B
The price per book at Book Store B is
the price per book at Book Store A.
Answers
GPT-4o mini
To solve these parts, we first need to determine the price per book at both Book Store A and Book Store B.
**Part A: Price per book at Book Store A**
At Book Store A, the total cost for 25 books is $393.75. To find the price per book, we divide the total cost by the number of books:
\[
\text{Price per book at A} = \frac{393.75}{25} = 15.75
\]
So, the price per book at Book Store A is $15.75.
**Part B: Price per book at Book Store B**
The equation provided for Book Store B is \( y = 5.25x \). To find the price per book:
When \( x = 1 \),
\[
y = 5.25 \cdot 1 = 5.25
\]
So, the price per book at Book Store B is $5.25.
**Comparing the prices**:
- Price per book at Store A: $15.75
- Price per book at Store B: $5.25
Now let's answer the parts.
**Part A**: The price per book at Book Store **A** is higher.
**Part B**: The price per book at Book Store B is **lower than** the price per book at Book Store A.
**Part A: Price per book at Book Store A**
At Book Store A, the total cost for 25 books is $393.75. To find the price per book, we divide the total cost by the number of books:
\[
\text{Price per book at A} = \frac{393.75}{25} = 15.75
\]
So, the price per book at Book Store A is $15.75.
**Part B: Price per book at Book Store B**
The equation provided for Book Store B is \( y = 5.25x \). To find the price per book:
When \( x = 1 \),
\[
y = 5.25 \cdot 1 = 5.25
\]
So, the price per book at Book Store B is $5.25.
**Comparing the prices**:
- Price per book at Store A: $15.75
- Price per book at Store B: $5.25
Now let's answer the parts.
**Part A**: The price per book at Book Store **A** is higher.
**Part B**: The price per book at Book Store B is **lower than** the price per book at Book Store A.