In a class of 25 students, 15 of them have a cat, 16 of them have a dog and 3 of them have neither

Answers

Answer 1

Answer:

9/25

Step-by-step explanation:

Our denominator is the total amount in class. x/25

Our numerator is the total of people are "the probability that a student chosen at random has a cat and a dog"  Which is -9.

~~~Hope this helps~~~ :)


Related Questions

Which two numbers below have a least common multiple of 48?

Answers

Answer:

its 3 and 16 just trust me

The least common multiple is divisible by both a and b. The two numbers below have a least common multiple of 48 is 3 and 16.

What is LCM?

The least common multiple that is divisible by both a and b is the smallest positive integer, lowest common multiple, or smallest common multiple of two numbers a and b, generally indicated by LCM.

The two numbers below have a least common multiple of 48 are,

3 and 16 ⇒ 3×16=48

Hence, the two numbers below have a least common multiple of 48 is 3 and 16.

Learn more about LCM:

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Expand the following by using distributive property 6(-3w+1/3)

Answers

Answer:

-18w+2

Step-by-step explanation:

Answer:

-18w + 2

Step-by-step explanation:

6(-3w+1/3) = 6(-3w) + 6(1/3) = (6 × -3w) + (6 × 1/3) = -18w + 2

what is 3 1/2 plzzz help me

Answers

Answer:

7/2 or 3.5 whichever you need

Step-by-step explanation:

System of Equations in Three Variables Word Problem

Answers

Answer:

i think the answer is a number or multiple number and maybe a decimal.

Step-by-step explanation:

go to Tiger Algebra Solver

what is 2+2 my brain has been in circles about this

Answers

Answer:

hey  welcome to Brainly, and 2 + 2 = 4

Step-by-step explanation:

2+2=4

3+3=6

4+4=8

5+5=10

and so on just keep adding 2

Find the z-score separating the lowest 9% of scores from the highest score of 91%

Answers

Answer:

I'm not sure of my answer but try this:

Valery and Manuel ride their bikes 40 miles every Saturday. Valery rides at an Average speed of 9.6 miles per hour (mph)

exactly how many hours does it take Valery to ride her bike 40 miles?​

Answers

Answer:Around 10 hours

Step-by-step explanation:

What is the answer here

Answers

Answer is B. 6a/b^7

If correct make brainliest?

Side XY of triangle XYZ is extended to point W, creating a linear pair with ∠WYZ and ∠XYZ.

Triangle X Y Z. Point W extends from side X Y. Angle Z is 36 degrees, angle Y is x degrees, and exterior angle W Y Z is 100 degrees.

What is the value of x?
64
80
100
180
I NEED HELP ON SOME MORE PROBLEMS ANYONE WILLING TO HELP???

Answers

Answer:

80

Step-by-step explanation:

Answer:

B (also known as 30)

Step-by-step explanation:

hope this helps!

Which expression is equivalent to 12•2•3

Answers

Answer:

4 x 3 x 2 x 3

Step-by-step explanation:

4 x 3 = 12

12 x 2 = 24

24 x 3 = 36

It doesn't matter what order it will come out to be 36 in every situation, since PEMDAS isn't needed.

A chef at a restaurant uses 17 pounds of butter each day. About how many grams does the chef use each day?

Answers

answer

7711.07

Step-by-step explanation:

The chef uses 7,711.03 grams each day at a restaurant.

How to convert Pounds to Grams?

The methodology to convert Pounds to Grams is relatively simple. To convert Pounds to Grams, you must multiply the unit by 453.59.

For example, if you have to convert 5 Pounds to Grams, you need to multiply 5 by 453.59.

A chef at a restaurant uses 17 pounds of butter each day.

We have to determine the number of grams the chef uses each day.

Since 1 pound (lb) is equal to 453.59 grams (g).

So 17 pounds = 453.59 × 17 = 7,711.03 grams

Thus, the chef uses 7,711.03 grams each day.

To learn more about the unit conversion click here:

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Twenty percent of all telephones of a certain type are submitted for service while under warranty. Of these, 70% can be repaired, whereas the other 30% must be replaced with new units. If a company purchases ten of these telephones, what is the probability that exactly two will end up being replaced under warranty?

Answers

Answer:

The required probability is 0.09875

Step-by-step explanation:

From the given information;

the probability of repairing the telephones = 0.70

the probability of the replaced = 0.30

Suppose we consider  Mto denotes the telephone that is submitted for service while under warranty and must be replaced.

Then;

p = P(S) = P(replaced | submitted) P(submitted)

= 0.30 × 0.20

= 0.06

Now, the probability that exactly two will end up being replaced under warranty given that it assumes  a binomial distribution where n = 10 and p = 0.06

[tex]P(X=2)=\bigg (^{10}_{2}\bigg) 0.06^2(1-0.06)^{10-2}[/tex]

[tex]P(X=2)=\dfrac{10!}{2!(10-2)!}\times 0.06^2\times (0.94)^{8}[/tex]

[tex]\mathbf{P(X=2)=0.09875}[/tex]

Please help me it’s very important please answer it correctly
Thank you

Answers

Answer:

a. m<CBA = m<DBA because of the definition of an angle bisector (angle bisector cuts the angle in half) We are also told that segment BD and Segment BC are congruent.

We don't know if segment AC and AD are congruent so we can't say those angles (the other two) are congruent.

b. point A and B will stay fixed because they are colinear to segment AB (on the same line)

c. Those two are needed because If those are true we can prove that they are congruent by SAS (Side Angle Side)

d. the reflection an prove that the lines and angles are congruent.

a corn vendor at a farmers market was selling a bag of 8 ears of corn for $2.56 anithert vendor was selling a bad of 12 for 4.32. which bag is the better deal?

Answers

you have to find out how much money each bag would be.
2.56/8 = 0.32
4.32/12 = 0.36
8 ears of corn is thebetter deal

Create a system of equations that includes one linear equation and one quadratic equation.
x^2 + 3x + 5 = x + 13
x^2 + 2x -8 = 0
(x+4) (x-2) = 0
x = -4 or x = 2
if x = -4, y = 9
if x = 2, y = 15
Part 2. Graph your system of equations and show the solution graphically to verify your solution.
how do I graph it

Answers

Answer:

Hello sir,

Step-by-step explanation:

If you are in  a zoom meeting and want to get out of work tell me the code.

Find the indicated probability by using the complementation rule. A percentage distribution is given below for the size of families in one U.S. city. Size Percentage 2 39.9 3 24.4 4 20.1 5 10.8 6 3.3 7 1.5 A family is selected at random. Find the probability that the size of the family is 4 or more. Round results to three decimal places.
a. 0.156
b. 0.844
c. 0.357
d. 0.201

Answers

Answer:

The correct option is c.

Step-by-step explanation:

The percentage probability distribution is:

Size (X)      Percentage

 2                   39.9

 3                   24.4

 4                   20.1

 5                   10.8

 6                    3.3

 7                     1.5

Total             100.0

Compute the probability that the size of the family is 4 or more as follows:

P (X ≥ 4) = P (X = 4) + P (X = 5) + P (X = 6) + P (X = 7)

              = 0.201 + 0.108 + 0.033 + 0.015

              = 0.357

Thus, the probability that the size of the family is 4 or more is 0.357.

The correct option is c.

The length of a rectangle is four times its width. The length is 4 2/3 feet. What is the area of the rectangle?

Answers

Answer:

4.687225

Step-by-step explanation:

middle school math.​

Answers

The last one the reason is 2 is how much weeks so it’d be 2x - 126 cause that’s how much she wants to lose

Answer: d or the last one

Step-by-step explanation:

The last one because she wants to lose 2 pounds per week and of x is the amount of weeks she does it for and 126 is the amount she already weighs, then the equation would be y=2x - 126

Four less than twice a number is fifty

Answers

Answer:

28

Step-by-step explanation:

50+4= 54

54/2=28

Answer:

2a - 4 = 50

Step-by-step explanation:

Less than means that you subtract 4.

Twice a number just means that you multiply a number by 2.

And we know that all of that equals 50.

If you want to solve it..

2a - 4 = 50

    +4     +4

-----------------

2a = 54

Divide both sides by 2. 54/2 = 27

a = 27

Simplify 7.6 - 23

help me pleaseeee

Answers

Answer:

-15.4

Step-by-step explanation:

Simply just means "solve" or "make the equation shorter"

Answer:-15.4

Step-by-step explanation:

How to find the value of x

Answers

71°. Both angles are the same because both sides are the same length (21). 180°, the total amount of degrees in a triangle, minus 38. 142 is what you get. Divide that by 2

Please help me look at image

Answers

3a / b²

....................................

Answer:

3a/b^2 is the simplified answer

Please help me:) i will give brainliest to the right answer<3

Answers

Answer:

The answer is does

Step-by-step explanation:

Answer: I believe it's "does not."

Step-by-step explanation:

But I'm sorry if I'm wrong!!

How many distinct ways are there to arrange 2 orange marbles, 2 clear marbles, and 3 yellow marbles in a row? Give your
answer as an integer.
Provide your answer below:

Answers

Answer:

144

Step-by-step explanation:

3x2x2

the sum is 12, and after that you do 12^2

the final answer is 144

The number of distinct ways to arrange 2 orange marbles, 2 clear marbles, and 3 yellow marbles in a row will be 144.

What is a permutation?

A permutation is an act of arranging items or elements in the correct order.

There are 2 orange marbles, 2 clear marbles, and 3 yellow marbles.

Then the number of distinct ways to arrange 2 orange marbles, 2 clear marbles, and 3 yellow marbles in a row will be

⇒ (3 x 2 x 2)²

⇒ 12²

⇒ 144

More about the permutation link is given below.

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Solve for x.
Enter the number that belongs in the green box

Answers

Answer:

x = 45

Step-by-step explanation:

Because these are two congruent triangles inside of each other we can set up an equivalency ratio.

25/35 = x/65

Multiply both sides by 65 to get x alone

65 * 25/35 = x/65 * 65

(65 * 25)/35 = x1

1576/35 = x

x = 45

Hope this helps,

The difference of three times a number and two is twelve more than the number. Find the number. pls help

Answers

I may be wrong but I got x³- 2 + 12.

please help! finding coordinates of a point :)​

Answers

Answer:

Step-by-step explanation:

Follow the numbers.

Please help me fast!!!!!

Answers

Answer:

75

Step-by-step explanation:

If both factors are negative then the product is positive.

Answer: -75

Step-by-step explanation: 15 times 5 equals 75

Which equation is quadratic in form?
2(x + 5)2 + 8x + 5 + 6 = 0
x6 + 6x4 + 8 = 0
7x6 + 36x3 + 5 = 0
4x9 + 20x3 + 25 = 0

Answers

Answer:

I think it's the first one... but I'm not pretty sure.

Answer:

C

Step-by-step explanation:

edge 2020

7n + 5 =68.... how to solve this problem and show my work​

Answers

Answer:

n=9

Step-by-step explanation:

7n+5=68  Subtract 5 on both sides.

    -5  -5

7n=63       Divide both sides by 7.

/7   /7

n=9

Hope this helps! Have a nice day ^^

Answer:

n = 9

Step-by-step explanation:

1) Move similar terms to one side. Here we are moving the 5 over to the side with 68 by subtracting it. We also have to subtract 5 from the other side too (what you do to one side you must do to the other)

7n + 5 = 68

     - 5   -5

      7n = 63

2) Isolate the variable. We do this by dividing the 7 from 7n. We also have to divide 7 from other other side too.

     7n = 63

     /7    /7

       n =9

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