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A store sells all compact discs for
$14.99. The following equation represents the revenue,
y, (in dollars) generated by selling
x CDs.

y=14.99 x(x >= 0)

y=◻" when "x=8

A store sells all compact discs for $\$14.99$ . The following equation represents the revenue, $y$ , (in dollars) generated by selling $x$ CDs. $\newline$ $y=14.99x$ $(x \geq 0)$ $\newline$ $y=\square$ when $x=8$

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Evaluate two-variable equations: word problems

Full solution

Q. A store sells all compact discs for

\$14.99

. The following equation represents the revenue,

y

, (in dollars) generated by selling

x

CDs.

\newline

y=14.99x

(x \geq 0)

\newline

y=\square

when

x=8

Identify Equation and Value: Step $1$ : Identify the equation and the value of $x$ . $\newline$ We know the equation for revenue is $y = 14.99x$ , where $x$ is the number of CDs sold. Here, $x = 8$ .
Substitute Value and Calculate: Step $2$ : Substitute the value of $x$ into the equation to find $y$ . Calculate $y$ by substituting $x = 8$ into the equation $y = 14.99x$ . $y = 14.99 \times 8$
Perform Multiplication: Step $3$ : Perform the multiplication to find the total revenue. $14.99 \times 8 = 119.92$

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