Suppose you want to spend 4 hours rowing down the river 16 miles, but 8 hours rowing back up the river. How fast were you rowing? How fast is the river flowing? How could you use systems of equations to solve the problem? A.

Let x = your rowing speed.

Let y = the river current speed.

4(x - y) = 16

8(x + y) = 16

x = 4 miles per hour for rowing your boat

y = 2 mile per hour for the river current

B.

Let x = your rowing speed.

Let y = the river current speed.

x + y = 4

x - y = 8

x = 6 miles per hour for rowing your boat

y = 2 miles per hour for the river current

C.

Let x = your rowing speed.

Let y = the river current speed.

4(x + y) = 16

8(x - y) = 16

x = 3 miles per hour for rowing your boat

y = 1 mile per hour for the river current

D.

Let x = your rowing speed.

Let y = the river current speed.

16 (x + y) = 4

1/16(x - y) = 8

x = 96 miles per hour for rowing your boat

y = 32 miles per hour for the river current