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
jok3333 [9.3K]
2 years ago
5

There are 3 urns A, B and C each containing a total of 10 marbles of which 2, 7 and 4 respectively are red. One of the urns is s

elected randomly and a marble is drawn from the selected urn. It is found that the marble is red. What is the probability that the red marble is taken from urn B
Mathematics
1 answer:
sleet_krkn [62]2 years ago
5 0
<h3>Answer:  7/13</h3>

======================================================

Explanation:

We know that the marble selected is red, so we don't need to focus on the other colors.

7 red marbles are in urn B out of 2+7+4 = 13 total red marbles.

The probability the red marble came from urn B is therefore 7/13

You might be interested in
A copy machine makes
IrinaK [193]
This problem can be represented in a formula with fractions. To make it more simple, we are converting 5m30s to just pure seconds, which = 154 copies in 330 seconds.

You set up the formula like this: 154/330 = x/60. (it is x/60 because you want to know the x amount of copies per 60 seconds)

Cross multiply, you get 330x = 9240. Divide both sides by 330, you get:

 x = 28 copies.

The final answer is 28 copies per minute
7 0
3 years ago
Whats the square root of 9
cestrela7 [59]

Answer:

the answer your looking for is 3

Step-by-step explanation:

3 0
2 years ago
4 0ver 6 + 5 0ver 12
Elis [28]

Answer:

1.083

Step-by-step explanation:

7 0
2 years ago
How an object reflected in the x axis and y axis on the cartesian
NARA [144]

if a point is reflected on the x axis, the y coordinate changes. If an object is reflected on the y axis the x coordinate changes

8 0
2 years ago
If m∠XWY=20∘,m∠XWZ=40∘, and XY = 16, what is the value of YZ?
Blababa [14]

Answer:

YZ=16

Step-by-step explanation:

Because they are parallel

8 0
2 years ago
Other questions:
  • What is the approximate diagonal distance from one corner of a 3 inch by 5 inch index card to the opposite corner
    12·1 answer
  • What is used to substitute inorder to verify the solution of equations?
    12·1 answer
  • Someone know the answer ??<br>If you know , Can you help me, please ???
    13·1 answer
  • A candy machine contains 100 gumballs: 23 grape, 26 blueberry, 16 cherry, and 35 strawberry. What is the experimental probabilit
    5·1 answer
  • I need to find the total area of the rectangles
    6·1 answer
  • When the temperature stays the same, the volume of a gas is inversely proportional to the pressure of the gas. If a balloon is f
    5·1 answer
  • C) Out of 700 full marks rumba got 250 markes failed 30 marks what is<br>the pass percentage?​
    13·1 answer
  • If f(x) = 2x2 – 2, what is<br> X, what is f(-6)<br> give the right answer for a brilliant!
    7·1 answer
  • Juan graphed a line with a slope of −23 .
    12·2 answers
  • Help please help me please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!