Question

Marcia performs an experiment in which she pulls a marble from a bag. In her

experiment, she finds that she is twice as likely to pull a red marble as a blue
marble. If Marcia pulls 10 red marbles, how many blue marbles does she pull?

Answer 1

She pulls 5 blue marbles

Explanation:

Let x be the number of blue marbles

We are given that In her experiment, she finds that she is twice as likely to pull a red marble as a blue marble.

So, Number of red marbles = 2x

We are given that Marcia pulls 10 red marbles

So,
`2x = 10`

`x =(10)/(2)`

x=5

Hence She pulls 5 blue marbles