### Home > CC2 > Chapter 3 > Lesson 3.1.2 > Problem3-22

3-22.

Linh has a bag of beads that contains $10$ glass beads, $7$ metal beads, $15$ plastic beads, and $3$ clay beads. For each part below, if the bead selected is replaced before the next draw, what is the probability that Linh will pull out a:

Determine the number of beads in the bag.
$\text{Total number of beads}=35$

Divide the number of metal beads by the total number

$\frac{7}{35}$

$\frac{7}{35}=\frac{1}{5}$

1. Bead that is not plastic?

Use the same method as part (a).

$\frac{20}{35}=\frac{4}{7}$