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
Mandarinka [93]
3 years ago
11

For a family with 3 children, what is the probability that they have exactly 2 boys and 1 girl?

Mathematics
2 answers:
elixir [45]3 years ago
5 0

Answer:

1/4

Step-by-step explanation:

There are a total of four possibilities,

- Three girls

- Three boys

- Two girls and One boy

- Two boys and One girl

and only one of those options are 2 boys and 1 girl

Triss [41]3 years ago
4 0

Answer:

\frac{3}{8}

Step-by-step explanation:

Possibilities (G for girls and B for boys):

GGG

GGB

GBG

<u>GBB </u>

BGG

<u>BGB </u>

<u>BBG </u>

BBB

You might be interested in
What is the vertex , x coordinates , and x intercepts of y=2x ^2 + 4x-30
Evgesh-ka [11]
<span>5.1 </span>     Find the Vertex of   <span>y = x2-2x-15

</span>Parabolas have a highest or a lowest point called the Vertex .   Our parabola opens up and accordingly has a lowest point (AKA absolute minimum) .   We know this even before plotting  "y"  because the coefficient of the first term, 1 , is positive (greater than zero).<span> 

 </span>Each parabola has a vertical line of symmetry that passes through its vertex. Because of this symmetry, the line of symmetry would, for example, pass through the midpoint of the two  x -intercepts (roots or solutions) of the parabola. That is, if the parabola has indeed two real solutions.<span> 

 </span>Parabolas can model many real life situations, such as the height above ground, of an object thrown upward, after some period of time. The vertex of the parabola can provide us with information, such as the maximum height that object, thrown upwards, can reach. For this reason we want to be able to find the coordinates of the vertex.<span> 

 </span>For any parabola,<span>Ax2+Bx+C,</span>the  x -coordinate of the vertex is given by  -B/(2A) . In our case the  x  coordinate is   1.0000 <span> 

 </span>Plugging into the parabola formula   1.0000  for  x  we can calculate the  y -coordinate :<span> 
 </span><span> y = 1.0 * 1.00 * 1.00 - 2.0 * 1.00 - 15.0
</span> or <span>   y = -16.000</span>
6 0
3 years ago
On a buying trip in los​ angeles, rosaria perez ordered 120 pieces of​ jewelry: a number of bracelets at ​$77 each and a number
Digiron [165]

Let, the number of bracelets be x and the number of necklaces be y.

Given, there are 120 pieces of jewellery which are bracelets and necklaces.

So we can write the equation, x+y = 120....equation 1

Now given the price of bracelet = $7

So, the price of x bracelets = $ (7)(x) =$ (7x)

Given, the price of necklace = $13.

So, the price of y necklaces = $ (13)(y) = $ (13y)

The total amount for the jewellery given = $ 1080.

We can write the equation as,

7x + 13y = 1080....equation 2

Now from equation 1, we can write,

x = 120-y

By substituting this value of x in equation 2, we will get,

7(120-y) + 13y = 1080

840-7y+13y = 1080

840+6y = 1080

Now we will move 840 to the right side by subtracting it from both sides. We will get,

840+6y-840 = 1080-840

6y = 1080-840

6y = 240

We can get y by moving 6 to the other side by dividing it to both sides. We will get,

\frac{(6y)}{6} =\frac{240}{6}

y =\frac{240}{6}

y = 40

So we have got the number of necklaces = 40

Now we have, x = 120-40

x = 80

So, the number of bracelets = 80

We have got the required answer here.

8 0
3 years ago
A jug of juice has 7 cups of pineapple juice and 3 cups of orange juice. write the ratio of number of cups of pineapple juice to
Lesechka [4]
This ratio  would be 7:10
4 0
4 years ago
Mary saved $21, which was 30% of<br> the money she earned. How much did<br> Mary earn?
Luda [366]

Answer:

70$

Step-by-step explanation:

5 0
3 years ago
Help me with this please.
7nadin3 [17]

Answer:

Go to Mathpapa.com algebra calculator


Step-by-step explanation:


4 0
3 years ago
Other questions:
  • An infinite geometric series has 1 and 1/5 as its first two terms: 1, 1/5, 1/25, 1/125, . . . What is the sum, S, of the infinit
    15·1 answer
  • PLEASE HELP PICTURE IS SHOWN
    15·1 answer
  • Your cat weighs 12 pounds. How much does she weigh in ounces? CLEAR CHECK
    14·2 answers
  • How would I do this
    9·1 answer
  • Tasha has foam blocks stored in a box that measures 314 ft long by 3 ft wide by 1 ft tall. Each foam block is a cube with 14 -ft
    15·2 answers
  • Find the value of h in this triangle. Please and Thank you!
    15·1 answer
  • the size of a computer monitor is based on the diagonal length across the screen. The image shows a 24-inch monitor that is 13.6
    11·1 answer
  • How many cubic inches of water will the aquarium hold
    8·1 answer
  • Can somebody help me with this question please I dont know what real world situation I’ll mark you brainlist after please and ty
    12·1 answer
  • Solve for v.<br> 19v – 18 = 16 + 17v
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!