If we need 48 onces of juice for making 3 gallons of punch we can write our problem like:
[tex]\begin{gathered} 48\to3 \\ x\to9 \end{gathered}[/tex]where x is the juice needed to made 9 gallons of punch, so we can made a rulo of 3 to find x
[tex]x=\frac{48\cdot9}{3}=144[/tex]So we need 144 ounces of juice to made 9 gallons of punch
