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
lesantik [10]
2 years ago
14

A bag holds 13 marbles. 6 are blue, 2 are green, and 5 are red. If you select two marbles from the bag in a row without replacin

g the first marble, what is the probability that the first marble is blue and the second marble is green? Note: you are not replacing any marbles after each selection. YOU MUST SHOW ALL OF YOUR WORK FOR FULL CREDIT. SHOW THE INDIVIDUAL PROBABILITIES FIRST AND THEN THE FINAL ANSWER. please help me
Mathematics
1 answer:
lutik1710 [3]2 years ago
6 0

The probability of first drawing a blue one, and then a green one, is:

P = 0.19

<h3>How to get the probability?</h3>

There is a total of 13 marbles, such that:

  • 6 are blue.
  • 2 are green.
  • 5 are red.

Now we draw two marbles, we want to get the probability that the first one is blue, this is equal to the quotient between the number of blue balls and the total number of balls.

p₁ = 6/13

Now, after that, we want to draw a green one. The probability is computed in the same way (notice that now there are 12 marbles).

p₂ = 5/12

Finally, the joint probability is the product of these two:

P = (6/13)*(5/12) = 0.19

If you want to learn more about probability, you can read:

brainly.com/question/251701

You might be interested in
For a function F, what does F(5) represent? (20 points)
svp [43]

Answer:

Answer is  F(5)=11

7 0
3 years ago
Read 2 more answers
Iodine-125 has a half-life of about 60 days. How many milligrams of a 1000 mg sample will remain after 240 days?
Tomtit [17]

240 days is 4 times the half-life, which means that a sample of 1000 mg will decay to

\dfrac{1000}{2^4}=\dfrac{125}2=62.5\,\mathrm{mg}

after 240 days.

3 0
3 years ago
Can somebody please help me with this problem please
Furkat [3]

Answer:

m = 3, n = 4

Step-by-step explanation:

Solve using the substitution process. First, start with the second equation:

2m + 2n = 14

Simplify. Divide 2 from all terms within the equation. What you do to one side, you do to the other:

(2m + 2n)/2 = (14)/2

m + n = 7

Isolate the variable m. Subtract n from both sides:

m + n (-n) = 7 (-n)

m = 7 - n

Plug in 7 - n for m in the first equation:

-5m + 9n = 21

-5(7 - n) + 9n = 21

Solve. First, distribute -5 to all terms within the parenthesis:

(-35 + 5n) + 9n = 21

Simplify. Combine like terms:

-35 + (5n + 9n) = 21

-35 + 14n = 21

Isolate the variable, n. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First, add 35 to both sides:

14n - 35 (+35) = 21 (+35)

14n = 21 + 35

14n = 56

Isolate the variable n. Divide 14 from both sides:

(14n)/14 = (56)/14

n = 56/14

n = 4

Plug in 4 to n in one of the equations, and solve for m.

2m + 2n = 14

2m + 2(4) = 14

2m + 8 = 14

Isolate the variable, m. Do the opposite of PEMDAS. First, subtract 8 from both sides:

2m + 8 (-8) = 14 (-8)

2m = 14 - 8

2m = 6

Divide 2 from both sides:

(2m)/2 = (6)/2

m = 6/2

m = 3

Your answers: m = 3, n = 4

~

6 0
3 years ago
Read 2 more answers
Mallorie has 5$ in her wallet. If this 10% of her monthly allowance,what is her monlthly allowance?
horsena [70]
50 because 5 times 10 is 50
6 0
3 years ago
Read 2 more answers
Can anyone help me out on this not too sure on this
Paraphin [41]

Answer:

y = 0.1x - 4

Step-by-step explanation:

Given the following data;

Points on the x-axis (x1, x2) = (-3, 7)

Points on the y-axis (y1, y2) = (-7, -6)

First of all, we would find the slope;

Mathematically, slope is given by the formula;

Slope = \frac{Change \; in \; y \; axis}{Change \; in \; x \; axis}

Slope, m = \frac {y_{2} - y_{1}}{x_{2} - x_{1}}

Substituting into the equation, we have;

Slope = (-6 - (-7))/(7 - (-3))

Slope = (-6 + 7)/(7 + 3)

Slope = 1/10

Slope = 0.1

Next, we would write the equation using the formula;

y - y1 = m(x - x1)

y - (-7) = 0.1(x - (-3))

y + 7 = 0.1(x + 3)

y + 7 = 0.1x + 3

y = 0.1x + 3 - 7

y = 0.1x - 4

5 0
3 years ago
Other questions:
  • 50 points! See attachment
    7·2 answers
  • Which expression represents the phrase, "half the sum of 10 and a number"? 12x+10
    11·1 answer
  • The temperature at a point (x, y) on a flat metal plate is given by t(x, y) = 23/(8 + x2 + y2), where t is measured in °c and x,
    12·1 answer
  • Which inverse operation would be used to verify the following equation?
    6·2 answers
  • Dexter rides his bike 3 1/4 miles each day on Monday, Wednesday, and Friday. On Tuesday and Thursday he rides 7 3/8 miles each d
    5·1 answer
  • What is the product of 2x - 5 and 3x2 + 5x - 7? Write your answer in standard form.
    12·1 answer
  • SOLVE THR SIMULTANEOUS EQUATIONS <br>3X+Y=8<br>X-3Y=11<br>ANSWER PLEASE​
    11·1 answer
  • Please answer!!!!! I will give brainliest!
    8·1 answer
  • What is the simplified slope intercept form
    13·1 answer
  • Write 13.13.13.13.13 in exponential form?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!