Solve Problems Using Systems of Linear Equations
-A Twin-Engined Aircraft $38 \mathrm { mph }$

Solve Problems Using Systems of Linear Equations
-A twin-engined aircraft can fly 1330 miles from city A to city B in 5 hours with the wind and make the return trip in 7 hours against the wind. What is the speed of the wind?

A) $38 \mathrm { mph }$
B) $19 \mathrm { mph }$
C) $57 \mathrm { mph }$
D) $76 \mathrm { mph }$