Given:
The ratio of the weight of the Guinea pig to the weight of the Goliath beetle is,
[tex]8\colon1[/tex]Together they weigh 27 ounces.
[tex]\begin{gathered} 8x+x=27 \\ 9x=27 \\ \text{Divide by 9 on both sides} \\ \frac{9x}{9}=\frac{27}{9} \\ x=3 \\ \Rightarrow8x=8\times3=24 \end{gathered}[/tex]Therefore, Guinea pigs weigh 24 ounces and Goliath beetle weigh 3 ounces.
