Question

it cost $6 per hour to water the grass. how much will it cost to water the grass for 7/3 hours

Answer 1

start by writing a relation

$\begin{gathered} 1hour\longrightarrow\text{ \ 6} \\ \frac{7}{3}hour\longrightarrow x \end{gathered}$

find x using the relationship

$x=(\frac{7}{3}\text{hour)}\cdot\frac{\text{ \ 6}}{1\text{hour}}$$x=\text{ \ 14}$