In a class of 25 students, 20 have a brother and 8 have a sister. There are 3 students
who do not have any siblings. What is the probability that a student who has a sister
also has a brother?

Answers

Answer 1

Answer: 6/8 or 3/4 or 0.75

Step-by-step explanation:


Related Questions

what's the volume of this composite figure
a. 272 cubic inches
b. 192 cubic inches
c. 180 cubic inches
d. 372 cubic inches
please help!! I'll give brainiest

Answers

Answer:

372 in³

Step-by-step explanation:

v1 = 12×4×4=192 in³

v2 = 12×3×5=180 in³

total volume =180 +192 =372 in³

) Every two out of three kids sang at the talent show. What percent of the kids did not sing at the talent show? (round)

Answers

The answer is 33 percent

hope this helps!

Answer:

33%

Step-by-step explanation: 1 out of three kids in each group do not sing 100/3 = 33

The rectangle QPRS is translated 4 units to the up and 6 units to the left. Which rule describes the transformation that was applied to
rectangle QPRS to create rectangle QP'R'S?
o (x,y) → (X-6, y + 4)
o (x,y) → (x-4, y+6)
o (x,y) → (x+4, y-6)
o (x,y) → (X+6 Y-4)

Answers

Answer:

C. (x + 4, y - 6)

Step-by-step explanation:

Going up means to add.

When you go up you are in the positives.

When you go left or down on a graph you are in the negatives.

I will give you BRAINLIEST for the correct answer

Answers

Answer:

126

AS:

If these cubes are to to be placed so that their respective faces are parallel

or perpendicular, as the case may be, to the respective orientations of the

dimensions of the box, without tilting any cubes in any directions,

then choice B) can be justified. This leaves spaces (some volume) in the box

not filled by the cubes.

How many whole number of edges of the cubes fit into 4 cm?  

4 / 3 √ 2   must be rounded down to 3.

How many whole number of edges of the cubes fit into 8 cm?  

8 / 3 √ 2   must be rounded down to 6.

How many whole number of edges of the cubes fit into 10 cm?  

10 / 3 √ 2   must be rounded down to 7.

Then (3)(6)(7) = 126

Using the net below, find the surface area
of the pyramid.
4cm
2 cm
12 cm
Surface Area
=
[?] cm2
Enter

Answers

Answer:

everything is in the picture

The cost of a new car is $16,500. You can Finance the purchase by paying $500 down, and $350 a month for 60 months. What is the amount financed (Cash Price - Down Payment)?

Answers

Answer:

the amount financed is $16,000

Step-by-step explanation:

The computation of the amount financed is shown below:

As we know that

Amount financed = cash price - down payment

= $16,500 - $500

= $16,000

Hence, the amount financed is $16,000

If we deduct the down payment from the cash price so we can get the amount financed

And, the same would be considered

HELP WHATS THE ANSWER FOR THIS, WILL MARK BRAINLIEST!!!

Answers

ita the first answer 65..............

Can someone help me with these true or false questions thank you

Answers

Number 1 is false and number 2 and 3 is true.
Sorry if it’s wrong I’m kinda of learning this too.

Do 4x and 15 + x have the same value if x is 5?

Yes
or
No

Answers

No
Explanation : because no :3


The tires of an automobile have a diameter of 22 inches. If the wheels revolve ten times, how
far does the automobile move? (Round the result to the nearest tenth of a foot.)

Answers

222inches I’m not shure but use photo math for the answer

Mrs. Parson cuts 1 /3 of a piece of construction paper. She uses 1 / 6 of the piece to make a flower. What fraction of the sheet of paper does she use to make the flower?NO LINKKKKKKKKKKKKKKKKKKKKSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSs

Answers

Answer:

1/3*1/6 is ur answer.

1/18

in circle B, m ZDBF = 75°,m FC =60° and DE and AC are diameters.
Need help with this question asap!!

Answers

Answer:

[tex]\huge{\{\fbox{\tt{Questions }}\}}[/tex]

The required measures of the circle are:

mDF = 75, m∠FBE 105, mFC=60
m∠CBE = 45, mDAC = 225. m∠ABE=135

m∠ABF=120

What are the sections of the circle?

A section of a circle is a region enclosed by a chord and an arc of the circle. It is also called a circular sector. A circular sector is defined by its central angle, which is the angle between the two radii that form the sector, and its radius, which is the distance from the center of the circle to the endpoints of the sector.

Here,
A circle is shown,

mDF = 75  [shown in the image]

m∠FBE = 60 + ∠CBE

m∠FBE = 60 + ∠ABD     [∠ABD=∠CBE]

m∠FBE = 60 + 45             [∠ABD = 180 - 75-60]

m∠FBE = 105,

Similarly,

mFC=60, m∠CBE = 45, mDAC = 225, m∠ABE=135, and m∠ABF=120

Learn more about the section of the circle here:

https://brainly.com/question/29060579

#SPJ2

The volume of a cone is given by v=13πr2h. If a cone has volume 3π, what is the height of the cone when the radius is 12?

Answers

Answer:

16units

Step-by-step explanation:

Given data

The expression for the volume of a cone is given as

v=1/3πr^2h

v= 3π

r= 12

h=???

Substitute

3π= 1/3*π*12^2*h

3= 1/3*144*h

3= 144h/3

cross multiply

3*3= 144h

9= 144h

h= 144/9

h=16 units

Hence the heeight is 16units

Please solve 64^x=4096

Answers

Answer:

2

Step-by-step explanation:

64x64=4096

So its 64^2=4096

Answer:

x=2

Step-by-step explanation:

Given: 64ˣ=4096

Take the logarithm of each side: log₆₄(64ˣ)=log₆₄(4096)

Final answer: x=2

I need the answer please

Answers

it would first be 0.7 and then 1.1

Step-by-step explanation:

So, it is a question of Arithmetic Progression.

Answer attached...

Hope it helps :)

Question to this please not sure

Answers

Answer:

6

Step-by-step explanation:

Answer:

6 miles

Step-by-step explanation:

d = 2xr

2x3 = 6

hope this helps

If you answer I will mark you Brainliest!

Answers

Answer:

divide the figure into two parts.

area of triangle = 1/2×base×height

area of triangle = 1/2×3×3

area pf triangle = 4.5 units²

area of square = side²

area of square = 3²

area of square = 9unit²

Answer:

The figure is made up of a square and a triangle.

We will find both of their areas separately and then combining them will give us the required area.

Area of the triangle : ½ × base × height

= ½ × 3 × 3

= ½ × 9

= 4.5 units²

Area of the square : (side)²

= 3²

= 9 units²

Now, required area = (4.5 + 9) units²

= 13.5 units²

A triangle has an area of 32 square centimeters and a height of 1 centimeters. What is the length of the base of the triangle?
A.64 cm
B.32 cm
C.16 cm
D.8 cm

Answers

I think the answer is B

yes I need help with another one ASAP

Answers

Step-by-step explanation:

(-1,-1) (0,3)

3- -1 / 0 - -1 = 4/1 = 4

slope is 4

What is the sum of sqrt3 - i and 2 - sqrt3i?

Answers

Answer:

THE ANSWER IS B YALL I GUESSED AND GOT IT RIGHT

Step-by-step explanation:

HAVE A NICE DAY :)

The sum of given numbers is 2+√3 +i(-1+√3)

How to add complex numbers?

A complex number is a kind of number which has two parts:

Real partImaginary part

The real part consists of real numbers whereas the imaginary part consists of numbers like i (iota=√-1)and its multiples.

When we add complex numbers, we add the real part and the imaginary part separately.

In this question:

Adding real parts: √3 +2Adding imaginary part: -i+√3i=i(√3-1)

Therefore, we get a new complex number that is √3+2+i(√3-1).

To know more about sum of complex numbers refer:https://brainly.com/question/10251853

#SPJ2

What is the main difference between a square and a rhombus?
A.
A rhombus has 4 right angles, and a square does not.
B.
A square must have 4 right angles, but a rhombus may or may not have 4 right angles.
C.
A square has sides that are parallel, but a rhombus does not.
D.
A rhombus is always bigger than a square.

Answers

Answer:

B. a square must have 4 right angles, but a rhombus may or not have 4 right angles.

Answer:

B

Step-by-step explanation:

The main difference between a square and a rhombus is a square must have 4 right angles, but a rhombus may or may not have 4 right angles. All the angles of a square have to be 90 degrees. All right angles are 90 degrees. All squares are rhombuses, but not all rhombuses are squares. There are occasions when a rhombus has 4 right angles.

HELP ME PLAESE ASAPPP

Answers

area of triangle = base x height over 2
12 x 6 = 72
72 over 2 = 36
area is 36 ft^2

Geometry help please. Find m in the diagram please.

Answers

Answer:

m = 8

Step-by-step explanation:

[tex]\frac{m}{12}[/tex] = [tex]\frac{10}{5+10}[/tex]

15m = 120

m = 8

Use csc (90) = 10/m.

So, m = 10/csc(90).

m = 8.93997

Answer: m = 8

Please help! no links and scams pls. Giving brainliest if correct

Answers

Answer:

A) What is the opposite of the absolute value of negative 4?

B) What is the absolute value of negative 4?

C) What is the opposite of 4?

D) What is the absolute value of 4?

Step-by-step explanation:

Jamie invests money. In the first year it increases to 110% of its original value.
He spends 20% of the profit on a cricket bat and 1/8 of the reminder on a cricket jumper.
He is left with £140 profit. How much did Jamie invest?

Answers

Answer:

£2000

Step-by-step explanation:

Let the money invested be x.

After 1 year, the money is now 110% of x = 1.1x

Original amount of money: x

Profit in 1 year: 0.1x

He spends 20% of the profit on a cricket bat.

0.2 * 0.1x = 0.02x spent on cricket bat

The reminder of the profit is 0.8 * 0.1x = 0.08x

He spends 1/8 * 0.08x on a cricket jumper.

Amount of profit he has:

0.1x - 0.02x - 0.125 * 0.08x

This equals £140

0.1x - 0.02x - 0.125 * 0.08x = 140

0.08x - 0.01x = 140

0.07x = 140

x = 140/0.07

x = 2000

Answer: £2000

Just need help solving this problem.

Answers

Hey mate! Check it out. Good luck!

Which equation can best be modeled by the expression 10(-4)

Answers

-40
Take 10 and x it by the 4 and since it’s in brackets it will take the negative sin because it means it important because normally if you were doing 10x -4 you would have 40 because 10 is bigger but the 4 was in brackets

Can someone help me please with both questions?

Answers

he really put a link

What is the square root of -1?

Answers

Answer:

Step-by-step explanation:

The square root of a negative number is an irrational value

Answer:

✓-1 is an error but according to the rule of mathematics -1 is still the same thing as 0

✓0 is = 0

Use Substitution, what is the solution to the system 5x + y = 12 and 2x + Зу = -3

A (2,-3)
B (-3,3)
C (3,-3)
D (2,2)

Answers

Answer:

C

Step-by-step explanation:

Answer would be c sorry if wrong
Other Questions
What would be the tone of a passage, trying to prove that an original video game is better than the new video game. How does physical fitness promote over health? What benefits do you get 6 pointsfrom the physical activities you do? *Your answerThis is a required question Read the excerpt from The Secret Garden."That's fresh air," she [Mary] said. "Lie on your back and draw in long breaths of it. That's what Dickon does when he's lying on the moor. He says he feels it in his veins and it makes him strong and he feels as if he could live for ever and ever. Breathe it and breathe it."Which event is foreshadowed in this excerpt?the growing friendship between Mary and Colina dramatic improvement in Colin's healthColin's ability to live foreverthe arrival of springplss helppp How do you solve this How would you describe the Holocaust? IN BEST DETAIL. If its good Ill mark b ! Dont make it too smarty thanks read the two poems and answers part A and B D. How would you modify the military reductions portion of the Treaty of Versailles? Along with the(1)initiatives to prevent the prevalence of health(2)the United Nations formulated the (3) __millennium goals inthe year(4)so that nations across the world can reduce (5)andhunger, promote universal(6)for all and gender equity, reduce(7)__ among children, improve maternal health, combat HIV/AIDS, malaria,and other(8)diseases, ensure environmental(9)anddevelop global(10)in addressing global problems.partnershipcommunicablepovertyeducation problems health2000 eight sustainabilitymortalitydisease What happened to the badge system Brainly introduced the other day?i went in my profile to see if there was more badges to earn (by this time i had earned the first three that were availible) and the tab for badges was gone, anyone know whats up? HELP!!!! I NEED TO SUBMIT THIS WITHIN 3 HOURS!!!!!!At a dinner party, two desserts are being served. Six of the guests choose cheesecake, and eight of the guests choose apple pie. Write two associated part-to-whole ratios for this situation, in simplest form. Then, interpret these ratios within the situation. How many, and what type of solutions do the followquadratic equations have?2x2 3x 7 = 36 Christian influence in the Kingdom of Axum led to:A. the growth of salt and gold trade routesB. the collapse of it's trading empire c. the creation of illuminated manuscripts D.the increased demand for iron tools (a) If a force of 6 N is applied on a body of mass 4 kg, moving at a uniformvelocity, in the direction of its motion, find the resulting acceleration.(b) If the above force is applied in the direction opposite to the directionof motion of the body, find its deceleration. Need some help for this retake 0.486 Plus what equals 1.04 La semana prxima, Petra y yo ________ sobre el ciclo de la vida para nuestra clase de ciencias. descubrir descubriremos escribir escribiremos Need help ! Due SoonI mark brainliest !!!No links please! How did the fall of the Soviet Union effect the role of the United States on the World Stage? Sample Size Sample average Sample SDDiagnosed early bird 67 1.23 0.93Diagnosed night owl 59 2.10 0.99Analyze the data using a theory-based approach (use the Theory-based Inference applet) to determine whether early birds differ from night owls with respect to average nightmare frequency. The data are not strongly skewed within each group.Express the null and alternative hypotheses for testing.a. Null: The population average VDAS score for early birds is less than the population average VDAS score for night owls.Alt: The population average VDAS score for early birds is greater than the population average VDAS score for night owls.b. Null: The population average VDAS score for early birds is the same as the population average VDAS score for night owls.Alt: The population average VDAS scores are different for the two groups.c. Null: The population average VDAS scores are different for the two groups.Alt: The population average VDAS score for early birds is the same as the population average VDAS score for night owls.d. Null: The population average VDAS score for early birds is greater than the population average VDAS score for night owls.Alt: The population average VDAS score for early birds is less than the population average VDAS score for night owls. I need help ASAP?!!!!!!