Emily is making bead necklaces for her friends. Each necklace takes 2 beads and she has 12 beads. How many necklaces can Emily make?
1. Emily has 12 beads. 
2. Each necklace takes 2 beads. 
3. Emily wants to make necklaces for her friends. 

We want to know how many necklaces Emily can make. 

We can set up a proportion: 

$$\frac{12}{2}=\frac{x}{1}$$

We can solve for x: 

$$12=2x$$

$$6=x$$

Emily can make 6 necklaces.