Write a system of equations for the problem, and then solve the system.
-A boat travels 36 miles downstream in 4 hours and returns upstream in 12 hours. Find the rate of the speed of the current and the speed of the boat in still water if x = the speed of the boat in still water and 
A) Boat: 9 mph; current: 3 mph
B) Boat: 15 mph; current: 9 mph
C) Boat: 3 mph; current: 6 mph
D) Boat: 6 mph; current: 3 mph
Correct Answer:
Verified
Q136: Write a system of equations for the
Q137: Write a system of equations for the
Q138: Write a system of equations for the
Q139: Write a system of equations for the
Q140: Write a system of equations for the
Q142: Write a system of equations for the
Q143: Write a system of equations for the
Q144: Graph the solution of the system.
-X
Q145: Graph the solution of the system.
-X +
Q146: Graph the solution of the system.
-3x
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