Suppose that you and a friend are playing cards and decide to make a bet. If your friend draws two black cards in succession from a standard deck of 52 cards replacing the first card, you give him $30. Otherwise, he pays you $20. If the same bet was made 20 times, how much would you expect to win or lose? Round your answer to the nearest cent, if necessary.

Answers

Answer 1

Answer:

I am expected to win $150

Step-by-step explanation:

We need to calculate the probability of drawing 2 black cards with replacement

There are 26 black cards in a deck of cards

The probability of drawing a black card is thus 26/52 = 1/2

So the probability of drawing two black cards in succession with replacement will be 1/2 * 1/2 = 1/4

So the probability of not drawing the two in succession will be 1 - 1/4 = 3/4

so out of twenty trials the number of times the drawing will occur will be 1/4 * 20 = 5 times

The number of times it will not occur will be 20-5 = 15 times

The amount my friend will win will be 5 * 30 = 150

The amount I will win will be 20 * 15 = 300

The amount I expect to win in the deal will be 300-150 = $150


Related Questions

help! its due today.

Answers

Answer:c

Step-by-step explanation:

Answer:

a) [tex]\sqrt{90}[/tex]

Step-by-step explanation:

The square root of 90 is approximately 9.487.

Kerry made fruit punch for the party. She made 62 quarts of fruit punch. She divided the punch into 8 containers equally. How much punch did each container hold?

Answers

Answer:

7 quarts of punch

Step-by-step explanation:

62/8 is 7.75,

Peter can mow the lawn in 40 minutes and John can mow the lawn in 60 minutes. How long will it take for them to mow the lawn together?

Answers

If they mow the lawn together you would subtract 40 from 60 and your answer would be 20.
60 - 40 = 20

Question 17 of 30
Select the rate that is the greatest.
A. $70 per 8 hours
B. $1200 per 80 hours
C. $10 per hour
D. $800 per 40 hours

Answers

Answer:

$800 per 40 hours

Step-by-step explanation:

In photo

11x-2 can you solve for xplzz

Answers

Any other information?

Answer:

-22

Step-by-step explanation:

My teacher put no’s and yes’s

Answers

Answer:

I'm sorry can't help but edit it to a question

Step-by-step explanation:

:) ello

PLEASE ANSWER ASAP WILL GIVE BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Dusan had $49.60 in his checking account. He wrote one check for $24.40 and another check for $25.49. Dusan says that because he always rounds to the nearest dollar, he will always have more money in his account than his estimate. Is Dusan correct? Explain.

Answers

not necessarily because if the amount was say $50.03 and he rounded it to $50.00 then he would be under doing it and he would be short 3 cents

help me plzzzzzzzzz​

Answers

34, 68 ....(gusBCHDYEJTWJVDKGDOYROYRDKH
It would be 26 and 37.

Please help I need this now


54 + ( 48+72)x2/3

Answers

Answer:

134

Step-by-step explanation:

Your answer is simply 134

What is the product 70 × 10 power of 4?

Answers

Answer: 700000

Explanation: 70 • 10= 700
700 to the power of 4= 700000



Pls give brainliest

Help me. 1,2,3, and 4 are the only options for all letters so there is no lack of information in this picture.

Answers

Answer:

Step-by-step explanation:

a: 2

b: 4

c: 3

d: 4

e: 6

g + 10 = 3g

Translate into a sentence !! HELPPPPP

Answers

The sum of g and 10 equals the product of 3 and h

I need help with Geometry Please help me

Answers

Answer:

It would be B.

Please let me know if I'm incorrect!

with form of slope is it please help me the question is on the image​

Answers

Answer:

[tex]y = - 2x + 7[/tex]

you can see from graph that line is going through (0,7) and (5,-3) and that is enough to fine the equation of a line using formula

[tex]y-y_1= \frac{y_2-y_1}{x_2-x_1} \times (x-x_1)[/tex]

PLEASE HELP

1. I like or go to the beach or I like to eat ice cream.

2. I like or go to the beach and I like to eat ice cream.

3. I enjoy rainy days and I like to eat ice cream.

4. I do not enjoy eating ice cream or I do not enjoy rainy days.

5. Therefore, I enjoy ice cream.

ANSWER OPTIONS
A. p v q
B. ~q v r
C. r ^ q
D. p ^ q
E. (Three dots in the shape of a pyramid) q

Answers

Answer:

it's c. r ^ q

Step-by-step explanation:

I just did it in Edgy 2020

Answer:

Step-by-step explanation:

These are what the symbols mean so you can better understand them

p: I like to go to the beach

q: I like to eat ice cream

r: I do not enjoy rainy days

^ = means OR so a that has or in it.

v = means AND so any sentance with and in it

~ = not so any phrase that condridicts what the origional P,Q, and/or R

∴ = Therefore so any phrase with therefore.

So; p ∧ q would be P... OR... Q  acording to the key above would be

I ilke to go to the beach OR I like to eat icecream.

You can figure out the rest! Hope this helps you!

Which expression is equivalent to x−2y ?

Answers

Answer:

-2y+x

Step-by-step explanation:

x-2y

-2y+x

Answer:

x+2y+x+2

=2x+2y+2

=2(x+y+1)

Step-by-step explanation:

i hope its right

Find the X and Y intercepts of the equation..

Answers

Answer:

X would be the rate of change so it's x or 1 in this problem.

Y-intercept is -7

Step-by-step explanation:

hope this helps

Delia organised the same event last year . this year conference had a 12% increase in attendance compared to last year. 1071 people attended this year . how many attended last year?​

Answers

Answer:

1071/112=1%

1%= 9.5625

100%= 9.5625*100 = 956.25

Example:

112 People attendet this year. If the increase Was also 12%, a 112 people equals 112%. So,

112/112=1

1*100= 100

However, I am suprised that 956 and 0.25 People attendet the prevoius year. Are you Sure the Numbers are correct?

What should be the first step to solve the equation?
2x + 9(x – 1) = 8(2x + 2) – 5
Combine like terms on each side of the equation.
Use the distributive property on each side of the equation.
Use the subtraction property of equality to subtract 5 from each side of the equation.
Use the addition property of equality to add 2x to each side of the equation.

Answers

You would use the distributive property on each side of the equation

Answer: B  

(Use the distributive property on each side of the equation.)

Step-by-step explanation:

Find the probability of getting a doublet in a throw of a pair of dice.​

Answers

There are six ways to roll 2 dice such that both dice have the same value
These are the outcomes (1,1),(2,2),(3,3),(4,4,)(5,5) and (6,6).

To find the total number of outcomes, note that there are 6 choices for the first die (values 1–6) and there are 6 choices for the second die (again values 1–6) and so by the Multiplication Principle (MP) there are 36 total outcomes from rolling two dice once.

Now we have the following:

P(getting a doublet) =
Total number of outcomes
Number of ways to get double

=
36
6

=
6
1



Thus, the probability of getting a doublet is
6
1

.

Question:

Find the probability of getting a doublet in a throw of a pair of dice.

Answer:

The probability is 1 out of 6.

Explanation:

There are a total of 6 possibilities that you get a doublet, which is {1, 1}, {2, 2}, {3, 3}, {4, 4}, {5, 5}, and {6, 6}.

The total possibilities of throwing a dice are 6 possibilities for the first dice, and 6 possibilities for the second dice. Which results in a total of 6 × 6 = 36 possibilities available.

Probability = Possibilities of getting doublet ÷ Total possibilities = 6 ÷ 36 = 1 ÷ 6.

Hopefully this answer will help you.

how is a dilation different from other transformations?

Answers

A dilation changes the size of something

What is 859 divided by 3 with remainder

Answers

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

So all you have to do is use long division because a calculator won't help you with this if you are looking for a remainder so basically you just divide then you will get...

[tex]\frac{859}{3}=?\\?=286 R: 1[/tex]

So the answer is 286 and a remainder of 1.

The result of the division problem ; with the quotient and remainder respectively are 286 and 1

Numerator = 859Denominator = 3

__ 286 ______quotient

______

3 | 859

__6

-

__259

__24

-___19

-___18

____1 ________ remainder

Therefore, the quotient and remainder of the divison expression are 286 and 1

Learn more : https://brainly.com/question/15165519

May anyone please help me?

Answers

Answer:

1

Step-by-step explanation:

0^2 + 1

1

Is 9.68 a irrational or rational number the 8 is reapeting

Answers

Irrational I think bc it cannot be divided into a fraction

!!HELP!! can someone solve these two? Find the slope

Answers

I believe both have undefined slopes, because both are horizontal and vertical lines.

A student travels a distance of 25 kilometers in a time of 5 hours. What is the average speed of this student during this trip?

Answers

Answer:

5 kilometers per hour

Step-by-step explanation:

25 (kilometers) divided by 5 (hours) = 5 kilometers per hour

5 kilometer an hour

DUE IN AN HOUR, WILL GIVE BRAINLIEST! need both of them done, please show work and give answers. thank you!!

Answers

Answer (8): 2.6
Answer (9): I can’t see the full picture

Hey can someone pleasse help

Answers

Answer:

73.6

Step-by-step explanation:

I need helpppp IDKK

Answers

Answer:

Step-by-step explanation:

Choice

Answer:

Can you award me brainest

Q3. A + B = 0 and AB = - 36.
What is the value of A-B?

Answers

Step-by-step explanation:

A + B = 0

A = -B

(-B)B) = -36

-B^2 = -36

B^2 = 36

B = 6, -6

So, A = -6, 6

A - B = -12

or

A - B = 12

Answer:

A - B = ± 12

Step-by-step explanation:

Given

A + B = 0  → (1)

AB = - 36 → (2)

Subtract B from both sides of (1)

A = - B ← substitute into (2)

- B(B) = - 36 ( multiply both sides by 0 1 )

B² = 36 ( take square root of both sides )

B = ± 6

Substitute into (1)

If B = 6 then A =- 6 and A-B = - 6 - 6 = - 12

If B = - 6 then A = 6 and A - B = 6 - (- 6) = 6 + 6 = 12

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