In a class of 25 students, 17 have a brother and 12 have a sister. There are 10 students who have a brother and a sister. What is the probability that a student chosen randomly from the class has a brother?

Answers

Answer 1

Answer:

17/25

Step-by-step explanation:

Answer 2

Answer:

10/25

Step-by-step explanation:


Related Questions

At one farmer’s market, bananas cost $0.80 per pound. At another farmer’s market, bananas are sold in 5-pound bags for $4.50 per bag. Which explains how to find the better buy?
Divide 4.50 by 5 to find the unit rate for the 5-pound bag, and compare that number to $0.80 per pound.
Divide 0.80 by 5 to find the unit rate for the 5-pound bag, and compare that number to $0.80 per pound.
Multiply 4.50 by 5 to find the cost for 5 pounds, and compare to $4.50 per bag.
Multiply 4.50 by 0.80 to find the cost for 5 pounds, and compare to $4.50 per bag.

Answers

Answer:

It's the first one

Step-by-step explanation:

To find the price per pound, you have to divide 4.50 by 5, which you then compare to $0.80

Answer:

its a in edg

Step-by-step explanation:

just took the test peace out home fry

what is the variable in 5 + 12w

Answers

the variable in this question would be........................ W

you are welcom

The variable in 5+12w is w

A sales person at a Jewwlry store earns 5% commission each week. last week ,Heidi sold $640 worth of jewelry. Home much did she make in commission? How much did the jewellery store make from her sale?​

Answers

Answer:

224

Step-by-step explanation:

5 percent of 640=32

32 times by 7=224

please help . me . i will even help . you mark you brainliest

Answers

A = Not sure

B= 12.0

Hope I helped

A 52 foot piece of fishing line needs to be cut into 2 1/2 sections to make as many fishing rods as possible. How much of the fishing line will be left over?

Answers

72 buddy here to help

What is the length of the the midsegment of a trapezoid with bases of length 14 and 22?
The length of the midsegment of a trapezoid with the given bases is

Answers

Answer:

it would be about 138 for the hole thing

Step-by-step explanation:

Please provide the answer and an explanation.

Answers

Answer:

A = 37.1 square cm

Step-by-step explanation:

Composite Figures

The image shows a figure that can be seen as a composition of three regular shapes: two identical rectangles and a quarter of a circle.

The area of a rectangle of dimensions W and L is:

Ar = WL

And the area of a circle of radius r is:

[tex]Ac =\pi r^2[/tex]

A quarter of a circle has an area of:

[tex]\displaystyle A_q =\frac{\pi r^2}{4}[/tex]

The rectangles have dimensions of 5 cm by 3 cm, thus the area is:

Ar = 5 cm * 3 cm = 15 square cm

The quarter of a circle has a radius of r=3 cm, its area is:

[tex]\displaystyle A_q =\frac{\pi 3^2}{4}[/tex]

Calculating:

[tex]\displaystyle A_q =7.07\text{ square cm}[/tex]

The total area is twice the area of each rectangle plus the area of the quarter of a circle:

A = 2*15 + 7.07

A = 37.07 square cm

To the nearest tenth:

A = 37.1 square cm

please help asap I’m going to fail if I don’t ace this and brainly doesn’t have this question if anyone knows how to do this I will cashapp you

Answers

Answer:

C

Step-by-step explanation:

a translation over the x-axis keeps the same x value but flips the y value (makes it the opposite.)

so here, C starts at point (1,-2). when reflected over the x-axis this becomes (1,2)

a translation to the left subtracts from the x value

the coordinate changes from (1,2) to (-2,2) because 3 is subtracted from 1

The answer is c!!! Can I have money

What is the slope of the line that passes through (3,5) (7,3)

Answers

y = -2x + 13
I am 90% sure that is correct

Mel buys a house for £352,000 she sells the house for £325,600 calculate the percentage loss of mell makes

Answers

Answer:

7.5%  loss

Step-by-step explanation:

Step one:

given data

cost price= £352,000

selling price= £325,600

percentage loss= cost-selling price/cost price *100

percentage loss= 352,000-325,600/352,000*100

percentage loss= 26400/352,000*100

percentage loss= 0.075*100

percentage loss= 7.5%

what is 9.76 with 8% tax

Answers

Its $10.54 yeshgegstegegeysysgs i wrote that because it needs "20 characters or something"

Look at the system of equations:
2x + 6y = 10
5x + 15y =25
(HINT: solve for y=mx+b to graph!)

Which of these statements is correct?
A. The system has no solution
B. The system has an infinite number of solutions
C. The system has one solution at (-1,2)
D. The system has one solution at (5,0)

Answers

Answer:

B

Step-by-step explanation:

Both C and D solve the equations, so the system must have infinite solutions.

Triangle ABC has vertices A(-4, 1), B (-1, 3) and C (-1, 1). what would the vertices be if you graphed it’s reflection over the y axis

Answers

If this coordinates are reflected over the y-axis the resulting coordinate will be at A'(4, 1), B'(1, 3) and C'(1, 1)

Generally, if a coordinate (x, y) is reflected over the y-axis, the coordinate of the pre-image is (-x, y).

Note that the x-coordinate was negated while the y-coordinate remain the same.

Given the coordinate vertices of a triangle A(-4, 1), B (-1, 3) and C (-1, 1), if these coordinates are reflected over the y-axis the resulting coordinate will be at A'(4, 1), B'(1, 3) and C'(1, 1)

Learn more on reflection here: https://brainly.com/question/1908648

5x-2y=30 complete the missing solution to the equation​

Answers

Answer:

I would have to go with x = 8 and y = 5, meaning the solution is (8, 5).

Step-by-step explanation:

[tex]5x - 2y = 30[/tex]

[tex]5(8) - 2(5) = 30[/tex]

[tex]40 - 10 = 30[/tex]

[tex]30 = 30[/tex]

The equation is y=5/2x - 15 or if solving for X is -6
Step-by-step explanation:
In terms of y=mx+b, we are to make the Y by itself.
Step 1. -2y = -5x +30
Make y become positive!
Step 2. 2y = 5x - 30
Distribut the 2 over to make it 1y.
Step 3. 1y = 5/2x - 15
The equation is y=5/2x - 15
If you are to find X it would be....
-15 divided by 2.5 gets you x= -6

Which point is a solution of the inequality 5x – 2y > -4?

A= (-4,-8)
B= (-2,-9)
C= (-4,5)
D= (-6,3)

Answers

the correct answer is b

Answer is Option-B

What is Inequality:

A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.

Here, when we substitute B = (-2, -9) in given inequality equation  i.e.,

5(-2) - 2(-9) > -4

-10 + 18 > -4

8 > -4 (Satisfied)

Others options won't satisfies.

Answer is Option-B

Learn more about Solving Inequality here:

https://brainly.com/question/20085191?referrer=searchResults

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What is the value of s?

Answers

Step-by-step explanation:

Sum of angles in a triangle = 180°.

=> s° + (s/7 + 3)° + (s/7 - 3)° = 180°

=> 9/7 * s° = 180°

=> s° = 180° * (7/9) = 140°

Hence the value of s is 140.

Tell which number is greater.

0.086, 86%

Answers

Answer:

86%

Step-by-step explanation:

86% is greater

Explanation

86% as decimal = 86/100 = .86

Now u can tell that .86> .086

Write these in order, smallest first 0.34 1/3 3.5%

Answers

Answer:

1/3,0.34,3.5%

Step-by-step explanation:

Answer:

3.5, 1/3, 0.34

Step-by-step explanation:

3.5 as a fraction is 7/2 and 0.34 as a fraction is 7/20

On a field trip they take busses and vans. Each bus holds 60 people and each van holds 10 people. If 390 people went on the trip and they took a total of 9 vehicles, how many of each type of vehicle did they take?

Answers

Answer:

6 buses and 3 vans

Step-by-step explanation:

The diagram shows the governing system of a municipal government.



What does the diagram show about the strong mayor system?

The city council is elected and the mayor is not.
The mayor is elected and the city council is not.
The mayor has more power than the city council.
The city council shares equal power with the mayor.

Answers

Answer:

where is the diagram

Step-by-step explanation:

?

Answer:

C !!!   THE MAYOR HAS MORE POWER THAN THE CITY COUNCIL !!!

Step-by-step explanation:

The orbit of the Moon around the Earth is an ellipse with Earth at one focus. If the length of the major axis of the orbit is 477,736 miles and the length of the minor axis is 477,078 miles, find the minimum and maximum distances from Earth to the Moon. Round to the nearest whole number.

Answers

Answer:

226,335

251,401

Step-by-step explanation:

SKR SKR BOW

The minimum distance from Earth to Moon is 226,332 miles

The maximum distance from Earth to Moon is 251,401 miles

What is an Ellipse?

An ellipse is created by a plane intersecting a cone at the angle of its base

All ellipses have two foci, a center, and a major and minor axis

The sum of the distances from any point on the ellipse to the two foci gives a constant value

The value of eccentricity for all ellipses is less than one

The standard for of equation of ellipse is

( x²/a² ) + ( y²/b² ) = 1

where a > b

The length of the major axis = 2a

The length of the minor axis = 2b

The coordinates of foci = ( ±c , 0 )

where c² = a² - b²

Given data ,

The orbit of the Moon around the Earth is an ellipse with Earth at one focus

The length of the major axis 2a = 477,736 miles

The length of the minor axis 2b = 477,078 miles

Now , the value of a = 238,868 miles

The value of b = 238,539

Now , the maximum distance from earth to moon is = a + c

The minimum distance from earth to moon is = a - c

The value of the foci is given by c² = a² - b²

Substituting the values in the equation , we get

c² = ( 238,868 )² - ( 238,539 )²

c² = 157066903

Taking square roots on both sides , we get

c = 12532.63 miles

Now , maximum distance from earth to moon is = a + c

Maximum distance = 238,868 + 12535.63

                                = 251,400.63 miles

                                ≈ 251,401 miles

Now , The minimum distance from earth to moon is = a - c

Minimum distance = 238,868 - 12535.63

                               = 226,332.37 miles

                               ≈ 226,332 miles

Hence ,

The minimum distance from Earth to Moon is 226,332 miles

The maximum distance from Earth to Moon is 251,401 miles

To learn more about ellipse click :

https://brainly.com/question/19507943

#SPJ5


Perform the calculation then
round to the appropriate number
of significant digits.
5207 - 24.2
Hint: Look at the number that has the FEWEST sig figs to
determine how many sig figs should be in your answer.
(24.2 has 3 significant digits, so your answer should have
3 significant digits.)
Enter

Answers

Answer:

it is 69.5

Step-by-step explanation:


Mrs. Jones bought 250 apples for $22 500. She sold 50 for $120 each, and the remain
she sold 5 for $1 000 a parcel.
(a) State whether she made a profit or loss.
(b) Calculate her percentage profit or percentage loss. ​

Answers

I say the answer is A

Step-by-step explanation:                                                                                

Answer:

(a) yes

(b) 104% profit

Step-by-step explanation:

250 apples for $22,500

Part 1:

50x$120=$6000

Part 2:

200 sold at $1000 per 5 apples=200/5x1000=$40,000

$40,000+$6000=$46,000

A profit of $23,500

23500/22500=1.044 or 104% profit

Step-by-step explanation:

Factor: -12n - 20 they are asking for an expression

Answers

Answer:

-4(3n+5)

Step-by-step explanation:

Factored -4 out of -12n-20. Let me know if this answers the question!

What is the value of x

Answers

Answer is the letter A

Answer:

Step-by-step explanation:

Add all number together and take the square root

if the gas station has 80 customers on Tuesday, how many customers can be predicted to get a Dr.pepper?

Answers

Answer:

12

Step-by-step explanation:

Guys I rlly need help this due in 4 minutes, whats 1683 divided by 383 please help me

Answers

Answer:

1683 / 383 = 4.39 or approx 4.4

Answer:

4.39425587467 or 4 remainder 151.

Step-by-step explanation:

Long division.

1) For a period of time, an island's population grows at a rate of 3.8% per year. If the current
population is 1543, what will the population be in 5.2 years?

Answers

Okay so 3.8% of 1,543 is 58.634 so then you would multiply it by 5.2 for years witch would be 304.8978 so add that to the original witch is 1543 so your answer would be 1847.8978 rounded up would be 1848

You burn 5 calories each minute you bike. What integer represents the change in your calories
after you bike for 30 minutes?Immersive Reader

Answers

Answer:

150

Step-by-step explanation:

which statement best describes this graph?

Answers

Answer:

the second one

Step-by-step explanation:

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