Sun, a kayaker, paddles 8 miles upstream (against the current) in 2 hours. Returning to her original location, she paddles downstream (with the current) the same distance in 1 hour. The equations represent x, the paddling speed, and y, the speed of the current.

2(x-y)=a
b(x+y)=8

Which are true? Check all that apply.

A) a = 8
B) b = 8
C) a = 1
D) b = 1
E) a = b

Question

Sun, a kayaker, paddles 8 miles upstream (against the current) in 2 hours. Returning to her original location, she paddles downstream (with the current) the same distance in 1 hour. The equations represent x, the paddling speed, and y, the speed of the current.

2(x-y)=a
b(x+y)=8

Which are true? Check all that apply.

A) a = 8
B) b = 8
C) a = 1
D) b = 1
E) a = b

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