Question

Sara has a box that holds 7 blue marbles, 5 purple marbles, 3 white marbles, and 15 red marbles. She pulls one marble out of the box without looking. What is the probability of pulling a red marble

Answer 1

`(15)/(30)` or
`(1)/(2)` is your answer

Explanation:

First, add everything up,

7 + 5 + 3 + 15 = 30

This is what we have to so far

`(x)/(30)`

Then, we put the number of red marbles in place of x.

`(15)/(30)`

If you need the simplified version it is
`(1)/(2)`