Questions: A store sells notebooks for 3 each and does not charge sales tax. If x represents the number of notebooks Adele buys and y represents the total cost of the notebooks she buys, which best describes the values of x and y ? The value of x can be any real number, and y will be a real number. The value of x can be any real number greater than or equal to 0 , and y will be a real number greater than or equal to 0 . The value of x can be any integer, and y will be an integer. The value of x can be any integer greater than or equal to 0 , and y will be an integer greater than or equal to 0 .

A store sells notebooks for 3 each and does not charge sales tax. If x represents the number of notebooks Adele buys and y represents the total cost of the notebooks she buys, which best describes the values of x and y ? The value of x can be any real number, and y will be a real number. The value of x can be any real number greater than or equal to 0 , and y will be a real number greater than or equal to 0 . The value of x can be any integer, and y will be an integer. The value of x can be any integer greater than or equal to 0 , and y will be an integer greater than or equal to 0 .
Transcript text: A store sells notebooks for $\$ 3$ each and does not charge sales tax. If $x$ represents the number of notebooks Adele buys and $y$ represents the total cost of the notebooks she buys, which best describes the values of $x$ and $y$ ? The value of $x$ can be any real number, and $y$ will be a real number. The value of $x$ can be any real number greater than or equal to 0 , and $y$ will be a real number greater than or equal to 0 . The value of $x$ can be any integer, and $y$ will be an integer. The value of $x$ can be any integer greater than or equal to 0 , and $y$ will be an integer greater than or equal to 0 .
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Solution

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Solution Steps

Step 1: Define Variables

Let \( x \) represent the number of notebooks Adele buys, and let \( y \) represent the total cost of the notebooks. The price of each notebook is given as \( 3 \).

Step 2: Calculate Total Cost

The total cost \( y \) can be expressed as: \[ y = 3x \]

Step 3: Example Calculation

For the example where \( x = 5 \): \[ y = 3 \times 5 = 15 \]

Final Answer

The values of \( x \) and \( y \) are: \[ \boxed{x = 5} \] \[ \boxed{y = 15} \]

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