215k views
8 votes
Lisa has a bag of 30 beads to make jewelry

. There are an equal number of orange, green, and blue beads. Those are the only colors.

. Lisa chooses a bead randomly out of the bag

What is the probability that she will choose a green or blue bead

Answer choices
A 5/6
B. 2/3
C. 1/2
D. 1/6​

User Vireshas
by
8.1k points

2 Answers

6 votes

Answer:

Ok this is pretty simple hun, all you have to do if you encounter another exercise like this is see how many are of each colores marble and do it as a fraction with the total of numbers! Let me show you!

Explanation:

there are 30 beads in total (this will be our denominator in our fraction)

Because there are equal numbers of blue, orange and green we divide 30 into 3

30/3 = 10

So there are. 10 of each color.

Next we add the number of blue and green beads so

10 + 10 = 20 (that is our numerator)

Now we do a fraction

20/30 = 2/3 cause we divided both numbers by 10

Making the answer B. 2/3

User Jimmy Petersson
by
7.3k points
3 votes
I think that the answer is 2/3 I might be wrong tho
User Oibaf It
by
8.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories