,From the question
[tex]\begin{gathered} \text{for 1 hour she was given = \$0.50} \\ \text{let h be the number of hours she was given \$7.50 for} \end{gathered}[/tex]
Let do this in ratio form like this
[tex]\begin{gathered} \frac{1}{h}=\frac{0.50}{7.50} \\ we\text{ cross multiply to get} \\ 0.50h=7.50 \\ \text{divide }both\text{ sides by 0.50} \\ \frac{0.50h}{0.50}=\frac{7.50}{0.50} \\ h=15\text{ hours} \end{gathered}[/tex]
Therefore,
With the above solution we will have that
