Answer :
[tex]*\\x-\ weight\ of\ dog\\\\
\frac{x}{12}-\ weight\ of\ per\ rabbit\\\\
x+\frac{x}{12}=104\ \ \ \ |multiply\ by\ 12\\\\
12x+x=1248\\\\
13x=1248\\\\x=96\\\\
Dog\ weights\ 96\ pounds.[/tex]
Answer-
The weight of his dog is 96 pounds.
Solution-
Let's assume, weight of the Dylan's pet rabbit = x pounds, so weight of the Dylan's dog = 12x pounds,
The dog and rabbit weigh 104 pounds altogether, so
[tex]\Rightarrow x+12x=104[/tex]
[tex]\Rightarrow 13x=104[/tex]
[tex]\Rightarrow x=\dfrac{104}{13}[/tex]
[tex]\Rightarrow x=8[/tex]
So, the weight of rabbit is 8 pounds, and the weight of his dog is 8×12 = 96 pounds.