Question

Kristy earns $18 for 2 hours of babysitting. She charges a constant hourly rate. Which table correctly shows the amount Kristy earns babysitting for different number of hours?

Answer 1

`Hours(x)\ \ \ \ \ \ \ \ Earning(9x)\$\\1\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 9\\2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 18\\3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 27\\4\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 36\\5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 45`

Explanation:

`For\ 2\ hours\ babysitting\ Kristy\ gets\ \$18\\\\For\ 1\ hour\ she\ will\ get=(18)/(2)=\$9\\\\y=9x\\where\ x\ represents\ number\ of\ hours\ and\ y\ earning\\\\Hours(x)\ \ \ \ \ \ \ \ Earning(9x)\$\\1\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 9\\2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 18\\3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 27\\4\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 36\\5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 45`