in a class of 25 students 15 of them have a cat 16 have a dog and 3 of them have neither find the probability that a student at random has a cat and a dog

Answer:

21+v=52

Step-by-step explanation:

Sum means the result of two numbers added together

Answer:

35 in total

Step-by-step explanation:

Answer:

1/8362

Step-by-step explanation:

Student picked at random/Number of students

Answer:

20

Step-by-step explanation:

substitute 3 into 6/x, thats 2

substitute 3 into 2x^2, so that would be 2(3x3) and that would be 18

18+2=20

Step-by-step explanation:

if you want it on a number line put a closed circle around the 30 and draw the line till 60 and put a closed circle.

Answer:

About 2.24 cm

Step-by-step explanation:

You can use Pythagoras theorem which states that;

[tex]a^2+b^2=c^2[/tex]

Plug all values in;

√[tex]1^2=1\\2^2=4\\1+4=5\\5=2.236067977[/tex]

I hope this helps:) Have a good day!!

Answer:

The value of X is -2/3

Step-by-step explanation:

edge2021

Answer:

[tex]f(x)=3x-10[/tex]

Step-by-step explanation:

Recall point-slope form: Given a point [tex](x_{1}, y_{1})[/tex] and the slope [tex]m[/tex], the equation for the line is [tex]y-y_{1}=m(x-x_{1})[/tex].

We can plug in for our point and slope!

The equation for the line is [tex]y-14=3(x-8)[/tex].

Distributing the right side gives [tex]y-14=3x-24[/tex].

Adding [tex]14[/tex] to both sides gives [tex]y=3x-10[/tex].

So, the function is [tex]\boxed{f(x)=3x-10}[/tex] and we're done!

there are 220 total books at the book fair

Answer:

220

Step-by-step explanation:

1) 11 (books) - 5%

  x (total of books) - 100%

2) Cross multiplicate (100% is one and 5% is 0.05)

3) 11 - 0.05x

4) Switch x - [0.05x - 11]

5) Divide - [x = 220]

Answer:

x=7

Step-by-step explanation:

7+8 = 15

15+75 = 90

ABC is a 90º angle since AB is parallel to BC

Answer:

5

Step-by-step explanation:

Answer:

X = 31.5

Step-by-step explanation:

X / 1.5 = 21

X = 21 * 1.5

Answer:

20,464,000

Step-by-step explanation:

Answer: The answer is exactly 204,64000.

Step-by-step explanation: I hope I helped you out.

Answer:[tex]\frac{2A}{f} -2=f[/tex]

Step-by-step explanation:

A=1/2(r+2)

2A=f(r+2)

2A/f=r+2

2A/f-2=r

Answer:

[tex]c = 0.3m + 5[/tex]

define the variables:

c is the cost and m is minutes

It costs $14

Step-by-step explanation:

[tex]c = 0.3m + 5[/tex]

To solve for cost substitute 30 in for m

[tex]c = 0.3(30) + 5[/tex]

multiply

[tex]c = 9 + 5[/tex]

add

[tex]c = 14[/tex]

Answer:

8 books

Step-by-step explanation:

First you need to find the ratio between 6 and 9

6/9 = 2/3

The ratio is 2/3

Now for James's case his denominator would be 12

x/12

To find the numerator you need to multiply the denominator by 2/3

12 * 2/3 = 8

There you go, the numerator is your answer

8 books and 12 pencils

Hope this helps :)

Answer: 4(5y−2)=40

Divide both sides by 4.

5y−2=  

4

40

​

Divide 40 by 4 to get 10.

5y−2=10

Add 2 to both sides.

5y=10+2

Add 10 and 2 to get 12.

5y=12

Divide both sides by 5.

y= 12/5 or 2.4 please give brainliest

​

Step-by-step explanation:

The compound inequality for the temperature T of a refrigerator that is at least 35°F and at most 41°F is 35  ≤  T ≤  41

A compound inequality has two inequality statements joined together

The the temperature of the inequality is represented by T

The temperature T of a refrigerator is at least 35°F and at most 41°F

This means that the temperature falls between 35°F and 41°F

Since the temperature, T, is at most 41°F

This can be mathematically interpreted as

T  ≤  41

The temperature, T, is at least 35°F

35  ≤  T

Combining the two inequality statements 35  ≤  T and T  ≤  41, the compound statement formed is:

35  ≤  T ≤  41

The compound inequality for the temperature T of a refrigerator that is at least 35°F and at most 41°F is 35  ≤  T ≤  41

Learn more here: https://brainly.com/question/11316045

Answer:

below

Step-by-step explanation:

You didn't show the triangle, but we suppose the coordinate of B is (x,y)

when it reflect over the line x=-1, (x , y) - > (- (x - (-1)) , y) ==>  (- (x+1) , y)

then translate (x+2,y-5) : (-(x+1) , y) -> - (-(x+1)+2 , y-5) ==>  (-x+1 , y-5)

such as (5,3) -> (-6,3) -> (-4 , -2)

The second part of the trip took 1.5 hours.

Average Speed is the ratio of the total distance travelled to the total time taken to cover that distance. It is given by:

Average Speed = total distance ÷ total time

Given that the distance from the house to the tournament is 210 miles, hence:

Total distance = 210 miles

Also, The journey was in two parts, the first part took 2 hours. Let the second part take t hours. Therefore:

Total time = t + 2

The average speed of 60 miles per hour, hence:

60 = 210 ÷ (t + 2)

60(t + 2) = 210

60t + 120 = 210

60t = 90

t = 1.5 hours

Therefore the second part of the trip took 1.5 hours.

Find out more at: https://brainly.com/question/9834403

Answer:

nice handwriting

Step-by-step explanation:

i like it

Answer:

1. x= -12

2.p= 30

3.c= 9/10 or c= 0.9

4.m= 3

5.k= 5

6.a= 27

Step-by-step explanation:

Answer:

$2.45

Step-by-step explanation:

First divide the cost by number of items. you shall get $0.49

Now multiply the cost of 1 candy bar into 5 and you shall get $2.45.

Answer:

4.5

Step-by-step explanation:

1. The slope/unit rate in this equation is 4.5. The constant of proportionality, k, is the same thing as the slope, meaning that's the k = 4.5.

Step-by-step explanation:

option E is your correct answer.

hope this helps you.

Answer:

angle OPN, angle PON, angle NOP, angle PNO

Step-by-step explanation:

Essentially, this simply asks what angles contain the line OP. If we draw the triagnle NOP (in that order starting at the top), we can see that all these angles include the line OP within their angles.

(note: Im not sure if it is asking for the line OP in that order. If so, it would only be angles 1 and 3, as those have OP in that order)