Answer
$=\displaystyle \left[\begin{array}{ll}
353.75\\
656.25\\
892.50
\end{array}\right]$
On Monday, the total revenue is 353.75
For all days, the total revenue is 1902.50
Work Step by Step
$A=\displaystyle \left[\begin{array}{ll}
50 & 20 & 15\\
40 & 75 & 20\\
35 & 60 & 100
\end{array}\right]$
$B = \displaystyle \left[\begin{array}{ll}
3.50\\
5.75\\
4.25
\end{array}\right]$
Find the product matrix AB
$=\displaystyle \left[\begin{array}{ll}
50 * 3.50 + 20 * 5.75 + 15 * 4.25\\
40 * 3.50 + 75 * 5.75 + 20 * 4.25\\
35 * 3.50 + 60 * 5.75 + 100 * 4.25
\end{array}\right]$
$=\displaystyle \left[\begin{array}{ll}
353.75\\
656.25\\
892.50
\end{array}\right]$
On Monday, the total revenue is 353.75
For all days, the total revenue is 1902.50
