In the question, we are given the table below
We also know that one song cost $0.50 and one album cost $4. The total amount she has to download music is also given as $15.
If we let the number of songs be s and the number of albums be a. We can create an equation below as :
[tex]0.50s+4a=15[/tex]
We can complete the table using the equation above.
When s =6, we have
[tex]\begin{gathered} 0.50\times6+4a=15 \\ 3+4a=15_{} \\ 4a=15-3 \\ 4a=12 \\ a=\frac{12}{4} \\ a=3 \end{gathered}[/tex]
When a = 1
[tex]\begin{gathered} 0.50s+4\times1=15 \\ 0.50s+4=15 \\ 0.50s=15-4 \\ 0.50s=11 \\ s=\frac{11}{0.50} \\ s=22 \end{gathered}[/tex]
When s= 30
[tex]\begin{gathered} 0.50\times30+4a=15 \\ 15+4a=15 \\ 4a=15-15 \\ 4a=0 \\ a=\frac{0}{4} \\ a=0 \end{gathered}[/tex]
We can then have the answers in order.
Answer A: Table
Answer B: Equation
[tex]0.50s+4a=15[/tex]
Answer C: Graph
