CPM Homework Help : CC2MN Problem 4-42

A bag contains $4$ brown marbles, $3$ green marbles, $2$ red marbles, and $1$ purple marble. Calculate the probability of drawing each color, and write each answer as a fraction, as a percent, and as a decimal.

Step 1:

Find the total number of marbles in the bag.
$4+3+2+1=10$

Step 2:

$\large \frac{\text{# of brown marbles}}{\text{Total # of marbles}}=\frac{4}{10}$

Step 3:

Translate the fraction into a percent by using a Giant One with $10$ as both the numerator and denominator.

$\frac{2}{5}=40\%$

Step 4:

To find the decimal, divide $2$ by $5$ .
$2\div5=0.4$
Now repeat this process for green, red, and purple marbles.