Given: The modelled equation of 128 inches of elastic and headband as below:
[tex]\begin{gathered} 128=16h \\ \text{where h is the headbands} \end{gathered}[/tex]To Determine: If Brinley can make exactly 7, 8, or 9 headbands
From the equation, we can determine the value of h as shown below:
[tex]\begin{gathered} 128=16h \\ \text{divide both sides by 16} \\ \frac{128}{16}=\frac{16h}{16} \\ 8=h \end{gathered}[/tex]Hence, Brinley can make exactly 8 headbands