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
lyudmila [28]
3 years ago
7

A bag contains 9 blue marbles and 3 red marbles. two marbles are drawn at random and at the same time. what is the probability o

f getting two blue marbles
Mathematics
2 answers:
Strike441 [17]3 years ago
7 0
The answer is 9/12 or if simplified, it's 3/4
mr Goodwill [35]3 years ago
3 0

The total number of marbles in the bag are 12 (9 blue marbles and 3 red marbles).

Let "A" be the event that both the drawn marbles are blue.

Therefore, if two marbles are drawn at random and at the same time, then the probability of getting two blue marbles can be calculated as:

P(A)=\frac{9}{12}=\frac{3}{4}

This can also be expressed in terms of percentage as:

P(A)=\frac{3}{4}\times 100=75%

Thus, the required probability is either: \frac{3}{4} or 75%


You might be interested in
Could someone help please
pogonyaev

Answer:

3.5 m/s

Step-by-step explanation

Remove brackets

d = t^2 + 0.2t + 3.3t + .66              

Combine

d = t^2 + 3.5t + .66

The initial velocity  is 3.5

3 0
2 years ago
If c= the number of cars in a parking lot, which algebraic expression
DIA [1.3K]

Answer:

Option C) c+9 is correct

The sum of the number of cars and 9=c+9 is correct algebraic expression representation for given phrase

Step-by-step explanation:

Given that c=the number of cars in a parking lot.

The phrase given is "the sum of the number of cars and 9"

To find the algebraic expression which represents the given phrase :

The algebraic expression to the given phrase is c+9

That is option C) c+9 is correct

The sum of the number of cars and 9=c+9 is correct algebraic expression representation for given phrase

5 0
3 years ago
Help me with ma work pls
Serga [27]
Simply you would do

45+10 time the number of days

So

45+10 x 2 and then you would put the answer in the next Collin
5 0
3 years ago
Read 2 more answers
Which Data set has the smallest IQR ?
mel-nik [20]

Answer:

<h2 /><h2>The interquartile range (IQR) is the difference between the upper (Q3) and lower (Q1) quartiles, and describes the middle 50% of values when ordered from lowest to highest. The IQR is often seen as a better measure of spread than the range as it is not affected by outliers. Interquartile Range. 25% of values.</h2>

<h2 />

<h2>here your answer </h2>
8 0
3 years ago
The supplement of an angle is three times the measure of the angle.
stira [4]

Answer: The angle equals  45 ∘  and the supplement is  135 ∘

Explanation:

Since the supplement is three times the angle, we can say    s  =  3 a

Since we know the supplement is  

180 − a , we can plug that in.

180 - a = 3a

180  = 4 a  (add  a  to both sides)

45  =  a  (divide both sides by  4)

Since we know the angle now, all we have to do is multiply it times  3  to find the supplement.

45  ×  3  =  135

4 0
2 years ago
Other questions:
  • Larry rolls 2 fair dice and adds the results from each.
    7·1 answer
  • What is the ratio between the LCM of 180 and 594 and the GCF of 180 and 594
    15·1 answer
  • 14. Who shared command of The Alamo, but became sick during the battle?
    13·1 answer
  • Solve for x<br> 2(4x-3)-8=4+2 x ; x = 3?
    6·1 answer
  • How to Factor the Trinomial x^2 - x + 1 using the box method?<br><br><img src="https://tex.z-dn.net/?f=x%5E2%20-%20x%20%2B%201"
    7·1 answer
  • How many hours does it take to bake 280 cookies?
    9·2 answers
  • Solve the following equation for x<br> 2x+6=3x−12x+6=3x−1
    11·1 answer
  • What is the slope of the line graphed above?
    12·1 answer
  • I know what Y is but I don't know X
    7·1 answer
  • What is the coefficient of (3y^2 + 9)5
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!