In a class of 28 students, 21 have a brother and 9 have a sister. There are 7 students
who have a brother and a sister. What is the probability that a student chosen
randomly from the class has a brother and a sister?

Answers

Answer 1

1/4

because not a lot of students have both gender as siblings!

Answer 2

Answer:

Step-by-step explanation:

28 students in total

21 - 7 = 14 students only has a brother

9 - 7 = 2 students only have a sister

7 students have both brothers and sisters

probability of a student having a brother and a sister:

[tex]\frac{7}{28} = \frac{1}{4}[/tex]


Related Questions

Need help ASAP please
The graph of the quadratic function y(x) in the ty plane is a parabola containing the points (9,8) and (-5,8). Which of the following points could be the vertex of the parabola?
(0,2)
(2,5)
(4,10)
(7,0)

Answers

Answer:

(2, 5) is the correct answer.

Yes that’s right cool up

Parallelogram Problem

Answers

Answer:

x=6, AB=13, y=10, AD=13, P=46

Step-by-step explanation:

3x-5=x+7

2x=12

x=6

AB: 3(6)-5= 13

2y-7=y+3

y=10

AD: 10+3=13

Perimeter= 13+13+10+10=46

find the value of given expression

[tex] \sqrt{35 \times 35} [/tex]

Answers

35 is the answer to the question

You’ve probably heard police officers on television repeat the same line every single time they arrest someone: “You have the right to remain silent.” Have you ever wondered why they always say this? As it turns out, all police officers in the country are required by law to say these words, which are called “Miranda Rights.” They are named after a famous court case from 1966, Miranda v. Arizona.

THE CASE
In 1966, an Arizona man named Ernesto Miranda was accused of kidnapping and assaulting a teenage girl. After a few hours of questioning, he confessed his guilt to a police officer. Later, during his trial, the prosecution
used his confession as evidence to convict him. When the court did find him guilty, his lawyers appealed the case.

The case went all the way to the Supreme Court. The case related to the Constitution, because the 5th Amendment to the Constitution gives everyone the right to stay quiet when they are asked to confess a crime. Miranda’s lawyers argued that Miranda did not know about this right, and therefore his testimony
could not count as evidence in the trial.

THE RESULT
Since Miranda did not know about his 5th Amendment rights, his confession could not be used against him, and the Supreme Court ruled in his favor. The official court decision was over 60 pages long, but Chief Justice Earl Warren read the whole thing out loud for the court. It had two parts:

First, after the police arrest someone, they have to tell that person that they have the right to remain silent, just as it is stated in the 5th Amendment.

Second, the police also have to tell that person they have the right to use a lawyer in the trial and any time prior to that, and that if they cannot afford a lawyer, the government will provide them with one. These rights are both found in the 6th Amendment.

This is why you always hear police officers reciting these important rights whenever they arrest someone. They are called “Miranda Rights” today, named after Ernesto Miranda himself.

MIRANDA RIGHTS TODAY
The basic wording might sound familiar. “You have the right to remain silent. Anything you say can and will be used against you in a court of law. You have the right to an attorney. If you cannot afford an attorney, one will be appointed to you. Do you understand these rights as I have read them to you?” However, there are actually over 945 versions of the Miranda Rights! Every state and county can have its own wording.

Not only that, but the Miranda Rights also have to be translated into many different languages, in case the police arrest someone who does not speak English. There are also simplified versions, because it is important for minors
and the mentally disabled or mentally ill to understand their rights as well.

As it turns out, even 945 versions are not enough to make sure everyone understands what their rights really are. Some researchers have analyzed the wording of Miranda Rights from all over the country, and most versions are too complex for everyone to understand. Some are so complex, they are at the same reading level as a college accounting textbook!

It is extremely important that everyone can understand their right to remain silent and their right to be represented by a lawyer. The law says that, in order to use a suspect’s own confession against him, the court has to prove that the police read them their rights, they completely understood their rights, and that they chose to ignore those rights intentionally. The Constitution gave us these rights for a reason; make sure you understand them!

PART A: What does the word “convict” most closely mean as it is used in paragraph 2?
A. A person who has committed a crime
B. Deceiving someone as a legal tactic
C. To take someone to court
D. To find guilty of a crime

Answers

Answer:

D

Step-by-step explanation:

"Later during his trial, the prosecution used his confession as evidence to convict   him." The word "convict" in the paragraph is used to find guilty of crime because used to CONFESSION :) enjoy

Which statements descrībe the function fo) =3(3)? Check all that apply

Answers

Answer:

?

Step-by-step explanation:

??????????????????????????????????????

PLS help me
ll
ll
ll
ll
ll
ll
ll
ll
ll
ll
\ ll /
\/

Answers

Answer:

You would multiply (3 times 17) and then add 5. So the equation would look like this.

m=(3*17)+5                                                                                                                          Step-by-step explanation:

Answer:

3x 17

do that first then add 5

Step-by-step explanation:

hope this helps

have a nice day/night

You have to type up a 400 word paper. If you can type 25
words in 3 minutes, how long will it take you to type the
paper?

Answers

Answer:

48 minutes

Step-by-step explanation:

25=3 400/25=16x3=48

Answer:

48 minutes

Step-by-step explanation:

25 words - 3 minutes

400 words - x minutes

Cross multiply

25x = 400 x 3

25x = 1200

Divide both sides by 25

x = 1200/25

x = 48

please help fast asap

Answers

Answer: 47 degrees

Step-by-step explanation:

7x-9=4x+15 because of the vertical angle rule

7x-9=4x+15

3x=24

x= 8

So the angle 7(8)-9 = 47°

Answer:

m<ABC=<7x-9=7×8-9=47° is your answer

Step-by-step explanation:

4x+15=7x-9 vertically opposite angle

15+9=7x-4x

x=24/3=8

What is the area of this rectangle?​

Answers

Answer:

11 1/4

Step-by-step explanation:

1. count all the wholes -> 8

2. add all the halves ->there are 6 halves which is 3 wholes

3. add 1/4

4. add it all -> 8+3+1/4=10 1/4

need some help please

Answers

Answer:

A(t)+900=x

B(t)+500=x

for the sake of things X represents the answer and as both need to equal the same it works out so that plugging it into a calculator should give you the answer

Step-by-step explanation:

you could start by making a T chart on one Side A the other B starting with 900 at A and 500 at B go down by the appropriate increments 950, 600;1000, 700; 1050, 800; 1100, 900, 1150, 1000; 1200, 1100; 1250, 1200, and you guessed it, 1300, 1300. so there you go X=1300

Which table of values represents a line with a slope of 4/3

Answers

Answer:

c

Step-by-step explanation:

have a good day :D

to find the slope you take two points and add the y values and divide it by the x values

so you take the points (0,-2) and (3,2)

the y values are -2and2

2+2=4

the x values are 0 and 3

0+3=0

4/3=4/3 so that table does represent an equation with a slope of 4/3

sorry if this doesnt make sense its hard to explain virtually

Find the value of X
PLEASE HELP ASAP!!!!!

Answers

Answer:

-10

Step-by-step explanation:

the upper right is the same (105°), therefore the left 75°

now you have 180 = 75 + x + 115

therefore: -10

Apples cost $2 per pound at the local price club, but
the club has a membership fee of $50. Write an
equation to determine how many pounds (p) of apples
you can buy for $58.
(What’s the answer????)

Answers

Answer:

x=4

Step-by-step explanation:

y=2x+50

58=2x+50

8=2x

x=4

Write the equation for the line in point-slope form that passes through the point (- 4, - 6) with a slope of 34

Answers

Answer:

34 minus -6 minus= -6

Step-by-step explanation:

1 picture 2 questions please and thank you

Answers

Answer:

Step-by-step explanation:

WILL MARK BRAINLIEST
The graph of F(x), shown below, has the same shape as the graph of G(X) = x3 - x2, but it is shifted to the left 2 units. What is its equation?

O A. F(x) = (x - 2)3 - (x - 2)2
O B. F(X) = (x + 2)3 - (x + 2)2
O C. F(x) = x3 - x2 - 2
O D. F(x) = x3 - x2 + 2

Answers

Answer:

B

Step-by-step explanation:

After the translation of 2 units left, the function becomes f(x)=(x-2)³-(x-2)². Therefore, option A is the correct answer.

What is the function?

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

The given function is g(x)=x³-x².

When the shape is moved towards the left by k units, then replace x with x - k.

The function shifted to the left 2 units.

So, the function is f(x)=(x-2)³-(x-2)²

Therefore, option A is the correct answer.

To learn more about the function visit:

https://brainly.com/question/28303908.

#SPJ7

Sam is making wheels for tricycle. He can make 400 wheels in 2 hours. how many hours will it take him to make 1,000 wheels.

Answers

Answer:

5 hours.

Step-by-step explanation:

800 wheels in 4 hours.

Half of 400 is 200.

Half one 2 is 1

So 1000 wheels. 5 hours.

Help a person out would ya...no links

Answers

Answer:

72.25

Step-by-step explanation:

12.5 x 8.5 = 106.25

5 x 6.75 = 33.75

106.25- 33.75 = 72.25

Answer: H

Step-by-step explanation:

You're tryna find the area of the wall

Which is the whole surface area minus the door's area

Whole surface area = 8.5 x 12.5 = 106.25

Door area = 5 x 6.75 = 33.75

106.25-33.75 = 72.5 ft^2

ALSO REMEMBER ITS FEET SQUARED

Units are very important just to let you know especially in physics

If you don't get the units to be same then its going to be one heck of a problem

okay no more ranting hope u like my answer


B. Paula's Flower Shop has 246 tulips. The tulips need to be arranged in large vases that hold
exactly 8 flowers
.
How many large vases can be filled with 8 flowers each?
Will there be any leftover tulips?
• If so, how many?

Answers

30 full vases and 6 remaining

Angela is getting a pedicure at a spa that also offers massages where customers pay by the minute. If Angela only gets a pedicure, it will cost her $35. If she also pays for a 20-minute massage, it will cost her $50.

What is the y-intercept and what does it represent?

Answers

Answer:

The y-intercept is 35 and it represents how much she's already going to pay before adding a massage.

Answer: 90

Step-by-step explanation:

1 times 90 equal 90

Work out m and c for the line: y+2x=3

Answers

Answer:

m = - 2, c = 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

y + 2x = 3 ( subtract 2x from both sides )

y = - 2x + 3 ← in slope- intercept form

with m = - 2 and c = 3

what is 18k+3

asking for a friend

k as in the letter not 18,000

Answers

factor 3 out of 18k+3.

3(6k+1)

In an election, 471 people voted. Candidate B received 2/3 of the votes. How many votes did Candidate B receive? ​

Answers

Answer:314

Step-by-step explanation:

314 votes

471 x (2/3) = 314

can somebody help me please ​

Answers

Answer:

Step-by-step explanation:

a - 7 = 3(b + 2)

a - 7 = 3b + 2*3

a - 7 = 3b + 6           {Subtract 6 from both sides}

a - 7 - 6 = 3b

a - 13  = 3b         {Divide both sides by 3}

[tex]b =\frac{a-13}{3}[/tex]

Please help I will mark you brainliest !

Answers

a. y=-2.5x+50

b. slope=-2.5. y-intercept=50

Answer:

slope is -2.5

y-intercept is (0,50)

slope y-intercept is y= -2.5x + 50

Step-by-step explanation:

to find the slope you use rise/run the rise is 5 and the run is -2 which is 5/-2 or -2.5

the y-intercept is where the line hits a perfect point on the y-axis which would be at 50 in your case

y=mx+b

m= slope and b= y-intercept

why is m the slope? because the slope is the unknown variable

hope this helps :) (i tried to explain it as best as i could) have a nice day !!

hiii please help i’ll give brainliest thanks

Answers

Answer:

The answer is 5 beecause coefficients are the number when you multiply a number and a variable. For example 5a the coefficient in that term is 5 if you have 48e the coefficient is 48. So the coefficient is the number when you multiply a number times a variable.

plz help!!!!!!!!!!!!!!!

Answers

1—> 2 4 x (2 2) -2 ; 2 -5 —> ( 2 2)2 x (2 3) -3 ; 2 8—> (-2 -4 )-2 x (2 2)0 ; 2 -32—> (-2 2)-6 : (2 -5) -4

Please help me with this

Answers

Answer:

i cant see it...

Step-by-step explanation:

...

How many solutions does this equation have?
7a + 5 (a + 3) = 8a + 4 (a + 2)

Answers

Answer:

[tex]no \: solution[/tex]

Step-by-step explanation:

1) Expand.

[tex]7a + 5a + 15 = 8a + 4a+ 8[/tex]

2) Simplify 7a + 5a + 15 to 12a + 15.

[tex]12a + 15 = 8a + 4a+ 8[/tex]

3) Simplify 8a + 4a + 8 to 12a + 8.

[tex]12a + 15 = 12a + 8[/tex]

4) Cancle 12a from both sides.

[tex]15 = 8[/tex]

5) Since 15 = 8 is false, there's no solution.

[tex]no \: solution[/tex]

Therefor, this equation has no solution.

Does anyone know this answer???

Answers

Answer:

VX has the greatest length

The answer is B which is VX
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