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
stealth61 [152]
3 years ago
14

A bin has 5 white balls and k black balls in it, where k is an unknown positive integer. A ball is drawn at random from the bin.

If a white ball is drawn, the player wins 1 dollar, but if a black ball is drawn, the player loses 1 dollar. If the expected loss for playing the game is 50 cents, then what is k?
Mathematics
1 answer:
crimeas [40]3 years ago
4 0

Answer:

Step-by-step explanation: The expected loss is 50 cents, we know that it is more likely to lose than win. It is therefore difficult to get-50, so the overall difference between the two possibilities is 2, 50/200=1/4, and the probability to win is 1/4, and the probability to lose is 3/4. Since (1/4)*3=3/4, the number of black balls is 3 times the number of white balls, so k=15.

You might be interested in
The amount of time it takes to cook a turkey increases with the weight of the turkey. it is recommended that you cook a 10-lb tu
nadezda [96]
Answer:
The weight of the turkey is related linearly to the time taken to cook it, however, they are not proportional to each other.

Explanation:
1- Direct proportional means that when the weight of the turkey increases, the time required to cook it increase with the same amount, and vice versa
2- Inverse proportional means that when the weight of the turkey increases, the time required to cook it decrease, and vice versa
2- No proportionality relation means that the two are not related to each other.

Now, for the given problem, we are given that:
i. 10lb turkey takes 3 hours to cook
ii. an additional 12 minutes is added for every extra 1lb of turkey

Therefore:
If we have 10lb turkey ......> time required = 3 hr
If we have 11lb turkey .......> time required = 3 hr + 12 min
If we have 12lb turkey .......> time required = 3 hr + 12 min + 12 min
If we have 13lb turkey .......> time required = 3 hr + 12 min + 12 min + 12 min
Noticing the pattern, we can find that:
time required to cook the turkey increases as the weight of the turkey increases but not at the same rate.
This means that when the weight of the turkey is doubled, the time increases, however, it is not doubled.
This means that the weight of the turkey is related linearly to the time taken to cook it, however, they are not proportional to each other.

Hope this helps :)



3 0
3 years ago
Read 2 more answers
Is this correct? Yes or no, and explain your answer.
Ilya [14]

Answer:

I think the answer you have is correct

Step-by-step explanation:

8 0
2 years ago
aneesha travels at a rate of 50 miles per hour .Morris is taveling 3 feet per second less then aneesha .which is the best estima
Eddi Din [679]
3 feet per second is equivalent to 2.04545 miles per hour
7 0
3 years ago
What is the answer of 2×82
slamgirl [31]
The answer to this problem is 164.

Hope this answer helps! feel free to ask any additional questions :)
8 0
2 years ago
Please help I cant fuigure this outtttttttttttttttttttttttttttttttttt
krek1111 [17]

Answer:

18 ft. By 13 ft.

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Help me with these questions
    12·1 answer
  • 3. Complete the square for 3x2 - 6x = 21.<br> Help
    6·1 answer
  • A room has a floor area of 120 square feet and a height of 8 feet. What is the volume of the room?
    15·1 answer
  • P(5,-3) Q(2,4) find distance​
    12·1 answer
  • Answer choices are:
    15·1 answer
  • Please help this is due today!!
    14·1 answer
  • Solve the equation x/5+x/4=1
    6·1 answer
  • Solve for 2.
    8·1 answer
  • Identify the values of m and b of the linear function y = mx + b, graphed below. ​
    11·1 answer
  • Please help ! I’m in such a rush! I have to be done before 3pm and it’s already 2:30pm
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!