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
levacccp [35]
3 years ago
13

A bag had 7 orange rocks , 6 green rock , 1 white rock ,7 black rocks , and 2 yellow you randomly pull a rock from the bag ,keep

it out , and then pull out another one .
What is the probability of getting a yellow rock and then a n orange rock ?
Mathematics
1 answer:
daser333 [38]3 years ago
4 0

Answer:

Probability = \frac{7}{253}

Step-by-step explanation:

Given

Orange = 7

Green = 6

White = 1

Black = 7

Yellow = 2

Required

Probability of selecting a yellow then orange rock

From the question, we understand that the probability is that of without replacement.

Since the yellow, is first picked.

We need to determine the probability of picking a yellow rock, first.

P(Yellow) = \frac{n(Yellow)}{Total}

P(Yellow) = \frac{2}{7 + 6 + 1 + 7 + 2}

P(Yellow) = \frac{2}{23}

The rock has reduced by 1;

Next is to determine the probability of picking an orange rock

P(Orange) = \frac{n(Orange)}{Total - 1}

P(Orange) = \frac{7}{7 + 6 + 1 + 7 + 2- 1}

P(Orange) = \frac{7}{22}

The required probability is calculated as thus:

Probability = P(Yellow) * P(Orange)

Probability = \frac{2}{23} * \frac{7}{22}

Probability = \frac{14}{506}

Probability = \frac{7}{253}

You might be interested in
What is the solution to this inequality x/10+6>8
topjm [15]

The answer to this would be x = 20

6 0
3 years ago
Read 2 more answers
PLSSSSS HELP PLS QUICKLY PLS
masya89 [10]

Answer:

-64

Step-by-step explanation:

we should put -2 for j and -1 for k,

8 0
3 years ago
Read 2 more answers
A charity fair raised $6,000 by selling 500 lottery tickets. There were two types of lottery tickets: A tickets cost $10 each, a
lara [203]

Answer:

it would be E

Step-by-step explanation:

20x60= 4800

480x10= 1200

4800+1200= 6000

6 0
3 years ago
Write the number equal to 5 tens and 13 ones
cluponka [151]
10 ones = 1 ten

6 tens 3 ones
63
3 0
2 years ago
NEED HELP FAST
juin [17]

Answer:

-24 2/7

Step-by-step explanation:

-180 4/7 -166 2/7

-180 -166 = -24

4/7-2/7 = 2/7

-24 2/7

3 0
3 years ago
Other questions:
  • What is 75 divided by 7 subtracted by 8 and multipled my 8?
    5·1 answer
  • Please help with math, will give brainliest
    15·2 answers
  • Can someone please answer. There is one problem. There's a picture. Thank you!
    15·1 answer
  • 8 points if answered!!
    5·1 answer
  • Does anyone know how I should answer this
    10·1 answer
  • Lines p and q are parallel. Which term describes the pair of angles? Transversal that intersects parallel lines p and q. Angles
    11·1 answer
  • Can somone please help me
    8·1 answer
  • A shirt increased by 1/4 after the increase it was priced at £65 what was the original price of the T-shirt
    10·1 answer
  • help please. Plot two points, C and D, which stay in the same place when they are reflected over line f. Plot two other points,
    5·1 answer
  • Please find the gradient of the given lines when coordinates of the lines are not given. Please with detailed steps.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!