Free Version
Difficult

# Applications with Matrices

SATSTM-UXTJE9

On day $1$ of Sally's sales trip, she sold $40$ books, $25$ cameras, and $30$ shirts. On day $2$ she sold $20$ books, $30$ cameras, and $15$ shirts. On day $3$ she sold $10$ books, $15$ cameras, and $40$ shirts. If each book cost $\$12$, each camera cost$\$60$, and each shirt cost $\$10$, then which one of the following matrix representations give the total amount of sales from the three items over the three days? A$\left[\begin{matrix}40&25&30\\\ 20&30&15\\\ 10&15&40\end{matrix}\right]\left[\begin{matrix}12&60&10\end{matrix}\right]$B$\left[\begin{matrix}12\\\ 60\\\ 10\end{matrix}\right]\left[\begin{matrix}40&25&30\\\ 20&30&15\\\ 10&15&40\end{matrix}\right]$C$\left[\begin{matrix}40&25&30\\\ 20&30&15\\\ 10&15&40\end{matrix}\right]\left[\begin{matrix}12\\\ 60\\\ 10\end{matrix}\right]$D$\left[\begin{matrix}12&60&10\end{matrix}\right]\left[\begin{matrix}40&25&30\\\ 20&30&15\\\ 10&15&40\end{matrix}\right]$E$\text{Not Possible}\$