Solve Problems Using Systems of Linear Equations
-Two Cars Leave $48 \mathrm { mph }$

Solve Problems Using Systems of Linear Equations
-Two cars leave a city and head in the same direction. After 7 hours, the faster car is 63 miles ahead of the slower car. The slower car has traveled 336 miles. Find the speeds of the two cars.

A) $48 \mathrm { mph }$ and $57 \mathrm { mph }$
B) $50 \mathrm { mph }$ and $59 \mathrm { mph }$
C) $90 \mathrm { mph }$ and $99 \mathrm { mph }$
D) $39 \mathrm { mph }$ and $48 \mathrm { mph }$ The figure shows the graphs of the cost and revenue functions for a company that manufactures and sells binoculars. Use the information in the figure to answer the question.
$$\text { Binoculars Produced and Sold }$$