A group consisting of 6 people is to be selected from eight parents and four teachers.
Find the probability of selecting three parents and three teachers.

Answers

Answer 1

Answer:

9/32 or 0.28125

Step-by-step explanation:

8 parents and 4 teachers

There are 12 possible outcomes.

probability = # of favorable outcomes / # of possible outcomes

Let's do the teachers first.

There are 4 teachers, and we are finding the probability for 3 of them being picked.

Therefore,

P = 3/4

Now let's do the parents.

There are 8 parents, and we want 3.

Therefore,

P = 3/8

Now, we do  [tex]\frac{3}{4} *\frac{3}{8} = \frac{9}{32}[/tex]

Therefore, the chance of 3 teachers and 3 parents being picked out of 4 teachers and 8 parents is 9/32, or in decimal form 0.28125.

Hope this helped!


Related Questions

Joey has $330 in his bank account and takes out $410, then takes out another $20. How will his knowledge of positive/negative numbers allow him to work out in his head, how much money he owes the bank?

Answers

He will owe $100. 330-410-20=-100

Kristen babysits 38 a week for $6.80 per hour. She earns an additional $224.00 in tips. How much did she make in 1 week?

Answers

Answer:

$482.40

Step-by-step explanation:

If that says Kristen Babysits for 38 hours a week you do 38x6.80 which is 258.40plus her tips .. 482.40

Given the definitions of f(x) and g(x) below, find the value of
(gof)(0)
f(x) = -3x + 5
g(x) = 2x² + 2x - 3

Answers

Answer f(x)= -3x + 5Hope it helps liked my answer please

Cos law please describe it? ​

Answers

Answer:

Below.

Step-by-step explanation:

In ANY triangle ABC:-

c^2 = a^2 + b^2 - 2ab cos C.

a, b and c are the sides opposite the angles A, B, and C.

jacob said the product of 8/9 and 2 and 3/4 is 3 and 1/4. how can you tell that his answer is wrong?

Answers

Answer:

he is wrong becuase 89 times a number greater than 0 cannot result in a product greater than the number

Step-by-step explanation:

Based on real algebra properties, we know that the product of  8/9 and 2 and 3/4 is not 3 and 1/4.

How to infer the correctness of a product?

The multiplication of two positive integers equals another positive integer. Each term of a multiplication can be rewritten as sums of multiples of 10, which can be simplified by algebra:

  Given;   Definition of multiplication

 8/9 and 2  = 26/9

3/4

The product is;

26/9 x 3/4

= 13 x 1/6

= 13/6

Based on real algebra properties, we know that the product of  8/9 and 2 and 3/4 is not 3 and 1/4.

To learn more on decimal numbers, verified question: brainly.com/question/4708407

#SPJ2

What statement is true

Answers

The first one because the slope of B is 3.

m is a right angle in triangle lmn. the measure of angle n is 67 and the length of mn is 8. What is the length of the hypotenuse?​

Answers

Maybe you should divide 67 and 8 to get to the length of the hypotenuse

15. Five different line segments are to be drawn so that each of the segments has an ending point at Point P. What is the greatest number of these line segments that could be intersected by some other line not drawn through P ?

A. 5

B. 4

C. 3

D. 2

Answers

I think the answer is A

Two cars leave San Francisco at the same time traveling in opposite directions. One travels at an
average speed of 74 mph and the other at 78 mph. In how many hours will they be 304 miles apart?
Let x = time of travel for the first car and y = time of travel for the second car.

Then the system that
models the problem is {74x + 78y=304}
Solve the system by using the method of addition.

Answers

Look it up on quizzes 6+8

In the school store, pencils cost 15 cents each and erasers cost 10 cents each. There is no tax. Gabby wants to spend exactly $2.00 on pencils and erasers.

How many of each can she buy? Provide detail explanation of your solution process and all possible strategies.

Answers

she bought 10 pencils and 5 erasers

Let x represent the number of pencils and y represent the number of erasers.

Gabby wants to spend exactly $2.00 on pencils and erasers, hence:

0.15x - 0.1y = 2        (1)

Therefore x = 10 and y = 5

Therefore she bought 10 pencils and 5 erasers.

Find out more at: https://brainly.com/question/25035724

50 là số chẵn hay lẻ

Answers

Answer:

Step-by-step explanation:

50 is even.

If number is divisible by 2, then it is even

Match the definition to the word.
1. a female child
goat
2.
a structure that is closed in by wire or bars to keep animals
inside
judge
3. a contest that a person or a team tries to win
edge
4. a sweet candy for chewing
gum
5. one side of a sheet of paper in a book or magazine
page
6. an animal with short horns and coarse hair
game
cage
7. the place where something ends; a border
girl
8. someone who makes decisions in a court of law

Answers

1. Girl
2. Cage
3. Game
4. Gum
5. Page
6. Goat
7. Edge
Good luck with everything:)

A company charges $300 for every 2 pounds of oranges sold plus a $3.00 shipping fee,
Based on this information, which graph best shows this relationship between the cost of oranges, y, and the number of pounds,

Answers

Step-by-step explanation:

8. Write an equation to solve for X.
30°
2
2x
Write an equation to solve for x

Answers

30+90+2x=180
2x=60
x=30

Answer:

2x= 30+90

Step-by-step explanation:

To check

2x= 120

2x/2=120/2

x=60

Can someone plz help me

Answers

Answer:

C

Step-by-step explanation:

It makes sense

Solve for x
3x+5≡0 mod 9

Answers

3x+5=0

3x=0-5

3x=-5

Divide both sides by 3

-1.6666.......

Hope it helps.

As for mod 9, I don't understand.

Answer:

[tex]x=-\cfrac{5}{3}[/tex]

[tex]x=-1.666[/tex]

Step-by-step explanation:

[tex]3x+5=0[/tex]

[tex]3x+5-5=0-5[/tex]

[tex]3x=-5[/tex]

[tex]\cfrac{3x}{3}=\cfrac{-5}{3}[/tex]

[tex]x=-\cfrac{5}{3}[/tex]

michelle is trying to buy a car that costs 35,550 and she saved up 20,700 she borrowed the remaining amount that she needed from finance company how much is the simple interest that accrued on this loan based on the original amount borrow

Answers

Answer:

so whats the question

Step-by-step explanation:

What is the equation written in vertex form of a parabola with a vertex of (9, -1) that passes through (7. 7)?
O
A. y = 2(x - 992 - 1
B. y = 2(x + 1)2 - 9
O C. y = 2(x - 7)2 + 7
D. y = 7(x - 9)2 - 1

Answers

Answer:

[tex]y = 2\, (x - 9)^{2} - 1[/tex].

Step-by-step explanation:

If the vertex of a parabola is [tex](h,\, k)[/tex], there would exist a constant [tex]a[/tex] ([tex]a \ne 0[/tex]) such that the following would be an equation for this parabola:

[tex]y = a\, (x - h)^{2} + k[/tex].

The equation above is in the vertex form.

In this question, the vertex of this parabola is [tex](9,\, -1)[/tex]. (Such that [tex]h = 9[/tex] and [tex]k = -1[/tex].) Therefore, the equation of this parabola in the vertex form would be:

[tex]\text{$y = a\, (x - 9)^{2} + (-1)$ for some $a \ne 0$}[/tex].

It was also given that the point [tex](7,\, 7)[/tex] is on the parabola. In other words, if [tex]x = 7[/tex] and [tex]y = 7[/tex], the equation of this parabola ([tex]\text{$y = a\, (x - 9)^{2} + (-1)$}[/tex]) should be satisfied. In other words:

[tex]7= a\, (7 - 9)^{2} + (-1)[/tex].

Solve this equation for [tex]a[/tex].

[tex]a = 2[/tex].

Therefore, the equation of this parabola in vertex form would be[tex]y = 2\, (x - 9) + (-1)[/tex], which is equivalently [tex]y = 2\, (x - 9)^{2} - 1[/tex].

50 pts if u anser this 4 me. thanks!

Answers

Answer:

the 1 mile and 3,218 meters in step 1 should be switched

Answer:

the 1 mile and 3216 should be switched

Step-by-step explanation:

it should be 3216 over 1

4*6=23
6*2=31
8*2=14
8*4=?​

Answers

8*4=32


Hope it helps

Help me pls

Thank u ☺️

Answers

Answer:

Step-by-step explanation:

Add the -5.57 to both sides then divide it by 2 which is -0.91

1. Brianna makes $9.60 per hour. She works 5 hours and 40 minutes on
Saturday. On Sunday, she worked for 1 hour and 10 minutes less than she
did on Saturday. How much money did Brianna make combined on
Saturday and Sunday?
A $86.40
B. $97.60
C. $99.20
D. $108.80

Answers

the answer should be 56

Arrange these numbers in order from least to greatest.

0.125

2.5%

1/4 ​

Answers

Answer:

2.5%, 0.125, 1/4

Step-by-step explanation:

PLEASE HELP!!! WILL GIVE BRAINLIEST!!!!

Answers

Answer:

7/20 is the scale factor

Step-by-step explanation:

We can see that Hexagon JKLMNO is bigger than Hexagon  PQRSTU. This means that the scale factor is less than one.

LK is similar to QR.

QR/LK

7/20 is the scale factor.

which of the following quadratic solutions has the following solution

Answers

Answer:

The first and second one

Step-by-step explanation:

plug in x :)

5(2x – 3) = x – 15 + 9x for x

Answers

see the attachment

hope it helps

Answer:

Step-by-step explanation:

5(2x – 3) = x – 15 + 9x

10x-15=10x-15

10x-10x=15-15

0=0

Hello, I need help on this, someone help, really need help on this.

Answers

9514 1404 393

Answer:

1,304,0006

Step-by-step explanation:

You may recall that when you learned multiplication of decimals, there were two facts involved:

the total number of decimal digits when two decimal numbers are multiplied is the sum of the numbers of decimal digits in each onemultiplying by 10 adds a zero on the right. (Multiplying by 10^n adds n zeros on the right.)

__

Here, we combine these facts.

Multiplying the decimal number 1.304 by 1000000 will add 6 zeros to the right of 1304 to make it 1304000000. Placing the decimal point in this product so there are 3 decimal digits (as there are in 1.304) makes this number be ...

  1,304,000.000 . . . . . . product of 1.304 and 1,000,000

You will notice the decimal point in 1.304 has effectively moved 6 places to the right.

What is the square root of PEMDAS?

Answers

Answer:

square roots fall under exponets

Step-by-step explanation:

Square roots are parts of exponents because a square root is just that number to the power of 0.5

Please give brainliest

Pls help me find the answer of the ratio ​

Answers

Answer:

pretty sure it's 10 1/2

Answer:

I think the answer is D. 12 1/2

Step-by-step explanation:

If you add up the two thing it becomes: 15 cups of flour and 6 cups of milk. So if you divide 15 by 6, it's 2.5. Now all you have to do is 5 (since there are 5 cups of milk) times 2.5, and you get 12.5. And 12.5 is 12 1/2 in fraction form. Hence, the answer is D. 12 1/2.

PLEASE HELP!!! Question 1 & 2

Answers

Answer: I don't understand?

What question?

Step-by-step explanation:

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