Let j be the length of Jenna's eel and b be the length of Bill's eel.

We know that b = 3j and b + j = 64.

Substituting the first equation into the second equation, we get 3j + j = 64

Combining like terms, we get 4j = 64

Dividing both sides by 4, we get j = 16

# Answer

16
<|im_start|>system
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<|im_start|>user
Jenna catches an eel that's 1/3 as long as Bill's. If the combined length of their eels is 64 inches, how long is Jenna's eel?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
16
Jenna catches an eel that's 1/3 as long as Bill's. If the combined length of their eels is 64 inches, how long is Jenna's eel?
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