All categories

3 years ago

A brother and a sister are in the same math class. There are 8 boys and 10 girls in the class. One boy and one girl are randomly

chosen. What is the probability that the brother and sister are chosen? Write your answer as a fraction in simplest form.

Mathematics

1 answer:

Serggg [28]3 years ago

4 0

$|\Omega|=8\cdot10=80\\ |A|=1\\\\ P(A)=\dfrac{1}{80}$

You might be interested in

A DVD box set includes 3 thriller movies and 2 comidies. Use t to represent the cost of each thriller and c to represent the cos

suter [353]

Answer:

The expression representing the Total cost of 6 boxes is $6(3t + 2c)$ .

The Simplified expression representing the Total cost of 6 boxes is $18t + 12c$ .

Step-by-step explanation:

Given:

Number of thriller movies = 3

Number of Comedy movies = 2

Let the cost of thriller movie be t

Also Let the cost of comedy movie be c

Total Number of boxes = 6

Now, given a DVD box set includes 3 thriller movies and 2 comedies.

Cost of Each box = $3t + 2c$

We need to find the total cost of 6 boxes

Total Cost of 6 boxes is = $6(3t + 2c)$

Hence the expression representing the Total cost of 6 boxes is $6(3t + 2c)$ .

Simplifying the above expression we get;

Total Cost of 6 boxes is = $6(3t + 2c)= 6\times3t+6\times2c=18t+12c$

Hence the Simplified expression representing the Total cost of 6 boxes is $18t + 12c$ .

3 0

3 years ago

I need help solving this

Gemiola [76]

Since the graphic shows you that both angles across from both of the sides are equal we can tell that both sides are equal.
Now to solve for the variable all you need to do is make an equation where both of the sides are equal to each other.
So...8x - 12 = 12x - 18
Now to solve you need to get rid of the constants, or regular numbers. To do this, add 12 to both sides.
So...8x = 12x - 6
Next, you need to move the variable to one side, do this by subtracting 12x from both sides.
So... -6x = -6
Finally, divide both sides by -6 to get what the variable equals.
So...x = 1
Your final answer is both sides equal 1 in.

7 0

3 years ago

(x + 3)2(x - 1)<br> is s<br> (x + 2)2<br> Determine the solutions to the following inequalities

horsena [70]

Answer:

I love algebra anyways

The ans is in the picture with the steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

8 0

3 years ago

A rectangular garden is fenced on all sides with 256 feet of fencing. The garden is 8 feet longer than it is wide. Find the leng

bazaltina [42]

A rectangula garden is 256 ft of fencing ]

3 0

3 years ago

I need help on this 1+s=3

11111nata11111 [884]

Answer:

s = 2

Step-by-step explanation:

3 - 1 = 2

1 + 2 = 3

Hopefully this helps :3 Sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

7 0

3 years ago