A survey of 140 pet owners yielded the following information: 47 own fish; 53 own a bird; 50 own a cat; 68 own a dog; 2 own all four; 11 own only fish; 14 own only a bird; 10 own fish and a bird; 21 own fish and a cat; 26 own a bird and a dog; 29 own a cat and a dog; 3 own fish, a bird, a cat, and no dog; 1 owns fish, a bird, a dog, and no cat; 9 own fish, a cat, a dog, and no bird; and 10 own a bird, a cat, a dog, and no fish. How many of the surveyed pet owners have no fish, no birds, no cats, and no dogs? (They own other types of pets.)

Answers

Answer 1

Answer:

18

Step-by-step explanation:

This is venn diagram with 4 elements

Fish = n(F)

Bird = n(B)

Dog = n(D)

Cat = n(C)

The formula is given as

n (F ∪ B ∪ C ∪ D) - n(pet owners that have not fish, bird, cat or dogs) = n(F ) + n ( B ) + n (C) + n(D) - n ( F ∩ B) - n ( F ∩ C) - n ( F ∩ D) - n ( D ∩ B) - n ( D ∩ C) - n ( C ∩ B) + n(F ∩ D ∩ C) + n(F ∩ D ∩ B) + n(F ∩ C ∩ B) + n(D ∩ B ∩ C)- n (A ∩ B ∩ C ∩ D)

= 140 - n(pet owners that have not fish, bird, cat or dogs) = 47 + 53 + 50 + 68 - 21 -26 - 29- 10 - 2

140 - n = 218 - 88

140 - 218 - 88 +[(9 + 4 + 10) -(11 + 14)] = n

140 - 218 - 88 + (33 - 25)= n

140 - 130 + 8 = n

10 + 8 = n


Related Questions

Factor the Expression x^2+x+7

Answers

The Answer Is x^2+×+7

Hope This Help's

Given g(x)=−2x2+1, find the indicated values: g(-4)

Answers

g(-4) means inputing -4 into x. So you will be replacing x with -4 in order to find a y for that input (-4). So...

g(-4)=-2(-4)^(2) + 1
=8^2 +1
= 64 +1
=65
(btw the question is a bit weird so im assuming that you forgot the exponent sign and it is -2x^2 + 1)

Find the S20 of this series
2, 6, 18,..

Answers

Multiply it by 3 until you get it

The first term in our sequence = 2

The common ratio = 6 / 2 = 3

n = the term we want to find.

2 * (3)^(n - 1)

2 * (3)^(20 - 1)

2 * (3)^(19)

2 * 1162261467

2324522934 is the 20th number in the series.



Estimate the answers after rounding to the indicated place value.

56.1: 6.6 (ones)

A 9

B10

C8

D7

E6

Answers

The answer is D:7 ㅤㅤㅤ

Graph 5x + 3y = 15 on a graph ​

Answers

Answer:

x and y

Step-by-step explanation:

you have to put 5 on the x axes and 3 on the y axes to cordanate 15

What are the odds of two people having the same birthday?

Answers

The odds are Rarely for two people

Answer:

In a room of just 23 people there's a 50-50 chance of at least two people having the same birthday. In a room of 75 there's a 99.9% chance of at least two people matching. Put down the calculator and pitchfork, I don't speak heresy.

Step-by-step explanation:

How do you write 28 and 65 thousandths in decimals?

Answers

Answer:

28.065

Step-by-step explanation:

The first spot behind the decimal point is tenths, the second hundredths, and the third thousandths.

Use the given conditions to write an equation in point-slope form. Keep parenthesis in point-slope form. slope = 7, passing through (1,-3)

Answers

Answer:

Step-by-step explanation:

y + 3 = 7(x - 1)

y + 3 = 7x - 7

y = 7x - 10

Perform the row operation 1/3R1 and replace R1 on the following matrix
[3 0 0|21]
[0 6 0|5]
[0 0 7|5]

Answers

Answer:

[tex]\left[\left.\begin{matrix}1 & 0 & 0\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}7\\ 5\\ 5\end{matrix}\right][/tex]

Step-by-step explanation:

The given augmented matrix is

[tex]\left[\left.\begin{matrix}3 & 0 & 0\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}21\\ 5\\ 5\end{matrix}\right][/tex]

Here, we need to perform the row operation [tex]\dfrac{1}{3}R_1[/tex] and replace [tex]R_1[/tex] in the above matrix.

So, divide each element of [tex]R_1[/tex] in the given matrix and other elements remain same.

[tex]\left[\left.\begin{matrix}\dfrac{3}{3} & \dfrac{0}{3} & \dfrac{0}{3}\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}\dfrac{21}{3}\\ 5\\ 5\end{matrix}\right][/tex]

[tex]\left[\left.\begin{matrix}1 & 0 & 0\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}7\\ 5\\ 5\end{matrix}\right][/tex]

Therefore, the required matrix is  [tex]\left[\left.\begin{matrix}1 & 0 & 0\\ 0 & 6 & 0\\ 0 & 0 & 7\end{matrix}\right|\begin{matrix}7\\ 5\\ 5\end{matrix}\right][/tex].

13. In a park there are 1596 trees in 42 rows. If each row has the same number of trees, estimate the number of trees in one row, rounded off to the nearest tens.​

Answers

Answer:

The ultimate answer according to the question is is 40 trees in one row.

Step-by-step explanation:

Let no. of trees in one row be X.

There are 42 rows,

or, 42X= 1596

or, X= 1596/42

So, X=38

Now, while rounding off to the nearest ten 38 goes to 40.

11.
- 2x + y -z= 2
-x-3y + z = -10
3x + 6z= -24

Answers

What do you need exactly

Select all that apply.

Which of the following are linear factors of p(x) = x 3 - 2x 2 - 5x + 6 ?

x + 1
x + 2
x - 1
x - 3

Answers

X+1
I hope that right

The sum of three consecutive multiples of 4 is 444. Find these multiples.

Answers

First multiple of 4 is x = 144

Second multiple of 4 is x + 4 = 144 + 4 = 148

Third multiple of 4 is x + 8 = 144 + 8 = 152

Step-by-step explanation:

Let the first multiple of 4 be x and second multiple be (x + 4) and third multiple be (x + 8) ...[Since, the number are consecutive multiple of 4]

☯ [tex]\underline{\boldsymbol{According\: to \:the\: Question\:now :}}\\[/tex]

[tex]:\implies \sf x \: + \: x \: + \: 4 \: + \: x \: + \: 8 \: = \: 444 \\ \\ \\ [/tex]

[tex]:\implies \sf 3x \: + \: 12 \: = \: 444 \\ \\ \\ [/tex]

[tex]:\implies \sf 3x \: = \: 444 \: - \: 12 \\ \\ \\ [/tex]

[tex]:\implies \sf 3x \: = \: 432 \\ \\ \\ [/tex]

[tex]:\implies \sf x \: = \: \dfrac{432}{3} \\ \\ \\ [/tex]

[tex]:\implies\underline{ \boxed{\sf x \: = \: 144}} \\ [/tex]

_________________

Therefore,

[tex]\bullet\:\:\textsf{First multiple of 4 = x = \textbf{144}} \\ [/tex]

[tex]\bullet\:\:\textsf{Second multiple of 4 = x + 4 = 144 + 4 = \textbf{148}} \\ [/tex]

[tex]\bullet\:\:\textsf{Third multiple of 4 = x + 8 = 144 + 8 = \textbf{152}}[/tex]

5 ( 3 squared x) + 9 ( 3 squared x)

Answers

Answer:

42x^2

Step-by-step explanation:

[tex]5(3x^{2} )+9(3x^2)\\\\=(5+9)(3x^2)\\\\=14(3x^2)\\\\=42x^2[/tex]

PLEASE HELP I CANT UNDERSTAND I NEED HELP

Answers

Answer:

Count houw many boxes the linegoes over

Step-by-step explanation:

Answer:

please mark my answer brainliest

Step-by-step explanation:

it can be solved by using Pythagoras theorem

if m+n=0, what is the value of n?

Answers

Answer: n= 0 - m

Step-by-step explanation:

To find value of n, isolate it by subtracting m from both sides.

Which of the following sets of numbers does square root of 49?

Answers

Answer:

7

Step-by-step explanation:

Natural numbers , Real numbers ,Whole numbers ,Integers , Rational numbers

sqrt(49) = 7

So this number is in the set of...

Natural numbersWhole numbersIntegersRational numbersReal numbers

The set of natural numbers is {1,2,3,...} and the set of whole numbers is {0,1,2,3,...}. Basically we just added in 0. Integers will be similar but we now have negative values too {..., -3, -2, -1, 0, 1, 2, 3, ...}

Rational numbers are anything of the form a/b with a,b being integers. In other words, if we can write the number as a fraction of two integers, then we have a rational number. In the case of 7, we have 7 = 7/1, so it is rational.

The set of real numbers includes every number type you have learned of so far (natural, whole, integer, etc). If you haven't learned about imaginary or complex numbers yet, then every number your teacher will go over is a real number.

Find the solution.
1. 20 - (12 - 7) =

Answers

Answer:

the answer is 15

Step-by-step explanation:

What is 3/8-2 what does it equal

Answers

Answer:

the answer would be -1 5/8 in fraction form and -1.625 in decimal form

Answer:

-13/8

Step-by-step explanation:

2 = 16/8

3/8-16/8 = -13/8

What is the distance between the following points?
Y
7
10-
9+
8+
7+
6+
5+
4+
3 |
2+
1+
+++++++
1 2 3 4 5 6 7
A++
-3-2

Answers

Answer:

+1 is the distanse of the following point

Marcus collected 5 fewer rocks than Esha

Part A
How many rocks did Marcus collect if Esha collected 22 rocks?

Answers

Answer:

Marcus has 17 rocks.

Step-by-step explanation:

A total of 716 tickets were sold for the school play. They were either adult tickets or student tickets. There were 66 more student tickets sold than adult tickets. How many adult tickets were sold?

Answers

Answer:

325

Step-by-step explanation:

Let the number of adult tickets sold be x

Therefore, number of students tickets sold = x + 66

Since,

Number of adult tickets + number of student tickets = 716

Therefore,

x + x + 66 = 716

2x + 66 = 716

2x = 716 - 66

2x = 650

x = 650/2

x = 325

Hence, 325 adult tickets were sold.

Place exactly three common mathematical operations between 1 2 3 4 5 6 7 8 9 to = 100. You can use the same operation up to three times, but are not allowed to re arrange the order of the digits

Answers

Answer:

- after 3 - after 5 and + after 7

Step-by-step explanation:

Leora had some money in her wallet. She spent $18.62 buying groceries and had $43.55 left. How much money did she have in her wallet before she bought the groceries?
$24.93
$35.93
$45.41
$62.17

Answers

Answer:

62.17

Step-by-step explanation:

you add 18.62 to 43.55 and get 62.17.

hope this helps.

Answer:

62.17 boom

Step-by-step explanation:

Identify the constraints modeled by this graph.

Answers

Use the methods transformation bisects cutting lines and that what the graph is the answer look at the points

what are the ordered pairs for this figure

Answers

Answer:

A (4, -5)

B (-4, 5)

C (0, -6)

D (-3, -6)

E (3, 0)

PLEASE MARK AS BRAINLIEST

You purchase 10,000 shares of a stock for $0.85 a share. One year later it is worth $0.95 a share. Find the profit if you sold at $0.95.

Answers

Answer:

Each share gained $0.10, which is an 11.76% increase (10/85).

The profit if the share is sold at $0.95/share, is $1000 and this can be determined by using the arithmetic operations.

Given :

You purchase 10,000 shares of a stock for $0.85 a share. After one year it is worth $0.95 a share.

The following steps can be used in order to determine the profit if the share is sold at $0.95/share:

Step 1 - The arithmetic operations can be used in order to determine the profit if the share is sold at $0.95/share.

Step 2 - According to the given data, the cost of 10000 shares of a stock is $0.85 a share. So, let the total cost of 10000 shares be 'x'. So, the value of 'x' is:

[tex]x = 10000\times 0.85\\x = \$8500[/tex]

Step 3 - Now, after one year the shares price is $0.95 a share. So, let the cost of 10000 shares after one year be 'y'. So, the value of 'y' is:

[tex]y = 10000\times 0.95\\y = \$9500[/tex]

Step 4 - So, the profit if the share is sold at $0.95/share, is:

[tex]P = y-x[/tex]

[tex]P= 9500-8500[/tex]

[tex]P= \$1000[/tex]

Therefore, the profit if the share is sold at $0.95/share, is $1000.

For more information, refer to the link given below:

https://brainly.com/question/1494270

is 2 by 2=4 rational or inrational and why

Answers

Answer: Rational number.

Step-by-step explanation:

Rational numbers:

Any number which can be expressed in the form of p/q.

Where q is not equal to Zero.

p,q are integers.

Here in 2/4 ,

p=2

q=4

Answer:  Rational

Step-by-step explanation:

A rational number is an integer divided by an integer where the result is a terminating or repeating decimal.

2 x 2 = 4    --> 4 is terminating  so it is a rational number.

If you are in a higher level math class, the reason is:

Rationals are CLOSED over multiplication.

(6x + 7)ºx (8r - 17)
Find the value of x.
O 10
O 11
O 12
O 13

Answers

70% sure it’s 12 I did it 3 times and 2 times it came out as 13 once as 14 but I’m pretty sure it’s 12

Assuming that a local cost cutter provides cuts perms and hair styling service and you fix cost are $120,000 in the variable cost or 40% of the sales revenue last year’s revenue total of $250,000. What is the break even points in sales dollars?

Answers

Answer:

Unit selling price

$7 $9 $7

Unit variable costs

(4) (5) (1)

Unit contribution margin

$3, $4, $6

With monthly fixed costs of $306,000, the company sells two units of A for each unit of B and three units of B for each unit of C.

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