The following chart indicates the reductions in total losses due to theft if a jewelry store hires additional security guards. $$\begin{array} { | c | c | }
\hline \begin{array} { c }
\text { Number } \
\text { of Guards }
\end{array} & \begin{array} { c }
\text { Dollar Value of } \
\text { Thefts Prevented }
\end{array} \
\hline 1 & 150 \
2 & 240 \
3 & 310 \
4 & 360 \
5 & 400 \
6 & 430 \
\hline
\end{array}$$ If the security guards can be hired for $45 per day, how many guards should the shop hire?

Question

The following chart indicates the reductions in total losses due to theft if a jewelry store hires additional security guards. $$\begin{array} { | c | c | } 
\hline \begin{array} { c } 
\text { Number } \
\text { of Guards }
\end{array} & \begin{array} { c } 
\text { Dollar Value of } \
\text { Thefts Prevented }
\end{array} \
\hline 1 & 150 \
2 & 240 \
3 & 310 \
4 & 360 \
5 & 400 \
6 & 430 \
\hline
\end{array}$$ If the security guards can be hired for $45 per day, how many guards should the shop hire?

Quizplus · Accepted Answer

The shop should hire 4 guards because the additional $45 spent on the fourth guard will prevent $50 worth of thefts.

The Following Chart Indicates the Reductions in Total Losses Due