Question

$72 for 7/1/2 hours Part A Find the unit rate. How much would it be for 40 hours?

Answer 1

We have that for seven and a half hours, you get 72$, then we have the following rule of three:

`\begin{gathered} 72\rightarrow7(1)/(2)hours \\ x\rightarrow1hour \end{gathered}`

then we have that:

`\begin{gathered} x=(72\cdot1)/(7(1)/(2))=(72)/((15)/(2))=(144)/(15)=9.6 \\ x=9.6 \end{gathered}`

therefore, for each hour, you get $9.6

So, for 40 hours we have:

`40\cdot9.6=384`

finally, we have that for 40 hours you get $384