1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anettt [7]
3 years ago
10

On a store counter are exactly two boxes containing only purple marbles and yellow marbles. Box A has 30 purple marbles and 20 y

ellow marbles; box B has 15 purple marbles and 35 yellow marbles. If Melanie randomly selects one of the boxes and then randomly selects one marble from that box, what is the probability that the marble selected will be purple?
Mathematics
1 answer:
klemol [59]3 years ago
4 0

Answer: Our required probability would be 0.35.

Step-by-step explanation:

Since we have given that

Number of boxes = 2

Number of purple marbles in Box A = 30

Number of yellow marbles in Box A = 20

Number of purple marbles in Box B = 15

Number of yellow marbles in Box B = 35

So,  If Melanie randomly selects one of the boxes and then randomly selects one marble from that box.

Probability that the marble selected will be purple is given by

\dfrac{1}{2}\times \dfrac{20}{50}+\dfrac{1}{2}\times \dfrac{15}{50}\\\\=\dfrac{1}{2}(\dfrac{20+15}{50})\\\\=\dfrac{1}{2}\times \dfrac{35}{50}\\\\=\dfrac{35}{100}\\\\=0.35

Hence, our required probability would be 0.35.

You might be interested in
What is the conjugate of -2 + 8i
topjm [15]

Answer:

-2 - 8i

Step-by-step explanation:

To find the conjugate of a complex number, change the sign of the imaginary part.

The conjugate of -2 + 8i is -2 - 8i.

3 0
3 years ago
Oceanside Bike Rental Shop charges fourteen dollars plus seven dollars an
astra-53 [7]
The answer is 5 hours
5 0
3 years ago
HELP NEEDED ASAP! Thanks :)
Arlecino [84]

Answer:

3

Step-by-step explanation:

First we must find the total boxes of pens

15 + 9 = 24

Then we can divide the total cost by the total number of boxes of pens

$72 / 24 boxes = 3

4 0
2 years ago
Help !!!!!!!!!!!!!!!!!!!!!
tankabanditka [31]

Answer:

I think the equation that best represent the relationship between r and s is A. s=1/6r

3 0
3 years ago
Pl help it’s for a grade I will give you Brainly if right
raketka [301]

Answer:

2/4

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • A ____ is a solid consisting of a square, a point not in the same plane as the square, and all points between them. A) Square Py
    5·2 answers
  • The sine of the complimentary angle of 34°
    5·1 answer
  • What is the answer to 4/7 x - 3 =6
    8·2 answers
  • 1. Determine the magnitude of the resultant force acting on the plate and its direction, measured counter-clockwise from the pos
    8·1 answer
  • If a number is positive, then it’s square is positive
    10·2 answers
  • Please help me only say something if you really know the answer
    14·1 answer
  • Plz help me ! axdmdd dldbs​
    6·1 answer
  • I will give brainliest pls help
    9·1 answer
  • Megan was painting on a rectangular canvas, and needed a frame for it. The length of the frame is 15 inches and the width is 10
    8·1 answer
  • Math help please and thank you
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!