The table shows the cost of one square foot of residential real estate, in dollars per square foot, together with the number of square feet your development company intends to purchase in each city. $$\begin{array} { | l | l | l | l | }
\hline & \text { New York } & \text { London } & \text { Hong Kong } \
\hline \text { Cost per sq. ft } & 780 & 810 & 270 \
\hline \text { Number of sq. ft } & 500 & 780 & 740 \
\hline
\end{array}$$ Use matrix multiplication to estimate the total cost of the real estate.
$\begin{array}{|l|}
\hline780 \
\hline780 \
\hline780 \
\hline780 \
\hline
\end{array}$
A)$1,222,700
B) $1,221,450
C) $1,220,600
D) $1,221,600
E) $1,221,480

Question

The table shows the cost of one square foot of residential real estate, in dollars per square foot, together with the number of square feet your development company intends to purchase in each city. $$\begin{array} { | l | l | l | l | } 
\hline & \text { New York } & \text { London } & \text { Hong Kong } \
\hline \text { Cost per sq. ft } & 780 & 810 & 270 \
\hline \text { Number of sq. ft } & 500 & 780 & 740 \
\hline
\end{array}$$   Use matrix multiplication to estimate the total cost of the real estate.
  $\begin{array}{|l|}
\hline780 \
\hline780 \
\hline780 \
\hline780 \
\hline
\end{array}$
A)$1,222,700
B) $1,221,450
C) $1,220,600
D) $1,221,600
E) $1,221,480

Quizplus · Accepted Answer

To estimate the total cost of the real estate, multiply the cost per square foot by the number of square feet for each city and then sum these products. For New York: $780 \times 500 = 390,000$, for London: $810 \times 780 = 631,800$, and for Hong Kong: $270 \times 740 = 199,800$. Adding these amounts gives a total of $390,000 + 631,800 + 199,800 = 1,221,600$.

The Table Shows the Cost of One Square Foot of Residential