Question

2/9 pound of granola fills 3 bags. How many bags do you need to hold 1 pound of granola

Answer 1

2/9 lb -------------------------->3 bags

1 lb ------------------------------>x bags

Using cross-multiplication:

`\begin{gathered} ((2)/(9))/(1)=(3)/(x) \\ (2)/(9)=(3)/(x) \end{gathered}`

Solve for x:

`\begin{gathered} x=(9\cdot3)/(2) \\ x=(27)/(2) \\ x=13.5 \end{gathered}`

Answer:

13.5 bags

---------------------------------

Let:

x = Number of bags needed

Multiplication:

`x=(9)/(2)*3`

Division:

`x=27/2`