Miss Nestor is randomly passing out books to her students for free reading time. In her book basket, she has 10 mysteries, 8 historical fiction novels, and 2 biographies. If there are 10 students in Miss Nestor's class for free reading time today, which of the following is the best prediction of the number of students who will receive historical fiction novels for free reading time?

Answers

Answer 1

The best prediction is that around 4 students (40% of 10 students) will receive historical fiction novels during Miss Nestor's class free reading time.

Miss Nestor is randomly passing out books to her students for free reading time. With a mix of 10 mysteries, 8 historical fiction novels, and 2 biographies in her basket, and 10 students in the class, we can make a prediction. Assuming each genre of book has an equal chance of being selected and each student gets one book, the probability of getting a historical fiction novel is the number of historical fiction novels divided by the total number of books. That's 8 historical fiction novels divided by (10 mysteries + 8 historical fiction novels + 2 biographies), which equals 8/20 or 40%. Therefore, if we predict using probability, around 40% of the students, which equals 4 students (40% of 10 students), will receive historical fiction novels for free reading time.

Answer 2

the best prediction of the number of students who will receive historical fiction novels for free reading time is 4.

To predict the number of students who will receive historical fiction novels, we can use the concept of probability.

First, let's find the probability that a student randomly selects a historical fiction novel from the basket.

The total number of books in the basket is 10 + 8 + 2 = 20

The probability of selecting a historical fiction novel is the ratio of the number of historical fiction novels to the total number of books:

[tex]\[ P(\text{historical fiction}) = \frac{8}{20} = \frac{2}{5} \][/tex]

Now, if there are 10 students in the class, the expected number of students who will receive historical fiction novels can be found by multiplying the probability by the total number of students:

Expected number of students receiving historical fiction = P(historical fiction) * Total number of students

[tex]\[ = \frac{2}{5} \times 10 \][/tex]

= 4

So, the best prediction of the number of students who will receive historical fiction novels for free reading time is 4.


Related Questions

Factor the polynomial: 1–bx–x+b

Answers

Final answer:

The polynomial 1 - bx - x + b can be factored by rearranging the terms to (1 + b) - x(1 + b), allowing us to factor out 1 + b, resulting in the factored form (1 + b)(1 - x).

Explanation:

The polynomial in question, 1 \\u2212 bx \\u2212 x + b, can be factored by rearranging and grouping terms. Indeed, the suggestion to factor out at least one x from all terms that contain it can be helpful in some cases, for example, ax^2+bx+c. However, for the polynomial given, we need to rearrange the terms to (1 + b) \\u2212 x(1 + b). Notice that 1 + b can be factored out, resulting in (1 + b)(1 \\u2212 x).

Therefore, the factored form of 1 \\u2212 bx \\u2212 x + b is (1 + b)(1 \\u2212 x).

In general, when factoring polynomials, being attentive to common factors and rearranging terms to identify them can lead to a simpler expression. For a quadratic equation like ax^2+bx+c=0, factoring is a powerful tool, often applied after identifying an integrating factor or using the quadratic formula.

isolate the variables of 110=m+95​

Answers

Answer:

15

Step-by-step explanation:

To isolate the variable, subtract 95 on both sides.

110=m + 95

m=15

Hope this helped! :)

Answer:

m=15

Step-by-step explanation:

110=m+95

Just subtract 95 from each side to isolate m and get your answer

110=m+95

-95     -95

15=m

solve x+b greater than c for x

Answers

Answer: x+b>c/x

Step-by-step explanation: hope it helps please give brainliest!

Answer:

what kind of math is that?

what is 1017 square feet of lawn mowed in 9 minutes written as a unit rate per hour

Answers

Answer:

6780

Step-by-step explanation:

(60/9) * 1017 = 6780

The answer is 6780, I believe so

Identify any solutions to the system given below.
2x + y = 5
3y = 15 - 6x
(6.-7)
(2, 1)
o (-2,-9)
(-4, 13)

Answers

Answer:

(6,-7)

(2,1)

(-4,13)

Step-by-step explanation:

we have

[tex]2x+y=5[/tex] -----> equation A

[tex]3y=15-6x[/tex] ----> equation B

Multiply the equation A by 3 both sides

[tex]3(2x+y)=3(5)[/tex]

[tex]6x+3y=15[/tex]

isolate the variable 3y

[tex]3y=15-6x[/tex] -----> equation C

equation B and equation C are equal

That means -----> is the same line

so

The system has infinity solutions

Remember that

If a ordered pair is a solution of the line, then the ordered pair must satisfy the equation of the line

Verify each ordered pair

1) (6,-7)

substitute the value of x and the value of y in the linear equation

[tex]3(-7)=15-6(6)[/tex]

[tex]-21=-21[/tex] ---> is true

so

The ordered pair is a solution of the system of equations

2) (2,1)

substitute the value of x and the value of y in the linear equation

[tex]3(1)=15-6(2)[/tex]

[tex]3=3[/tex] ---> is true

so

The ordered pair is a solution of the system of equations

3) (-2,-9)

substitute the value of x and the value of y in the linear equation

[tex]3(-9)=15-6(-2)[/tex]

[tex]-27=27[/tex] ---> is not true

so

The ordered pair is not a solution of the system of equations

4) (-4,13)

substitute the value of x and the value of y in the linear equation

[tex]3(13)=15-6(-4)[/tex]

[tex]39=39[/tex] ---> is true

so

The ordered pair is a solution of the system of equations

Answer:

(6,-7)

(2,1)

(-4,13)

Step-by-step explanation:

got it right on edg2020 :)

I need the slope intercept form please help and I need tho show the work

Answers

The slope-intercept form is [tex]y=\frac{1}{2} x+5[/tex].

Solution:

Given data:

Slope of the line, m = [tex]\frac{1}{2}[/tex].

Point on the line = (–2, 4)

Here [tex]x_1=-2, y_1=4[/tex]

Let us find the slope-intercept form of the line using point-slope formula.

Point-slope formula:

[tex]y-y_1=m(x-x_1)[/tex]

[tex]$y-4=\frac{1}{2} (x-(-2))[/tex]

[tex]$y-4=\frac{1}{2} (x+2)[/tex]

[tex]$y-4=\frac{1}{2} x+1[/tex]

Add 4 on both sides of the equation.

[tex]$y=\frac{1}{2} x+5[/tex]

Hence the slope-intercept form is [tex]y=\frac{1}{2} x+5[/tex].

Question d) please in image above

4x/x+2 x x-2/8x

Answers

Answer:

[tex]\frac{x-2}{2(x+2)}[/tex]

Step-by-step explanation:

Given

[tex]\frac{4x}{x+2}[/tex] × [tex]\frac{x-2}{8x}[/tex]

Cancel 4x and 8x on the numerator/ denominator, thus

[tex]\frac{1}{x+2}[/tex] × [tex]\frac{x-2}{2}[/tex]

= [tex]\frac{x-2}{2(x+2)}[/tex]

Solve the last Y pls uwu

Answers

4    180

8    360

12   720

The formula is x*2 | y * 2

Hey there!

Let's set up a proportion to figure this out.

[tex]\frac{x}{y} =\frac{4}{180} =\frac{8}{360} =\frac{12}{y}[/tex]

As we can see, 180 is being added each time, on the bottom. If we continue with the pattern, we get that your final blank will be 540.

I hope this helps! Have a great day!

dan is building a circular swimming pool and wants the circumference to be no more than 95 feet what is the largest radius possible for the pool. Round to the nearest tenth of a foot.

Answers

The largest radius for the swimming pool is 15.1 feet

Step-by-step explanation:

Step 1:

Circumference of the circular swimming pool built by Dan  = 95 feet

We need to determine the largest radius for the pool.

Step 2 :

Circle's circumference  is given by 2πr

Where r represents the radius

This shows that the radius is in direct proportion to the circumference. Hence the radius corresponding to the maximum circumference will be the largest possible radius

So we have 2πr = 95

=> r = [tex]\frac{95}{2\pi }[/tex]  

=> r =   [tex]\frac{95}{2}[/tex] × [tex]\frac{7}{22 }[/tex]  where [tex]\pi = \frac{22}{7}[/tex]

=> r = 15.1 feet (rounded off to tenth of a foot)

Step 3 :

The largest radius for the swimming pool is 15.1 feet

Final answer:

the largest radius possible for the pool, to ensure the circumference does not exceed 95 feet, is 15.1 feet.

Explanation:

Calculating the Largest Radius for a Swimming Pool

To find the largest possible radius for Dan's circular swimming pool with a circumference of no more than 95 feet, we will use the formula for the circumference of a circle, which is C = 2πr.

We need to solve for r (radius) when C ≤ 95 feet.

Setting up the equation:

95 ≥ 2πrr ≤ 95 / (2π)r ≤ 95 / (2 * 3.14) (Using π ≈ 3.14 for calculation)r ≤ 95 / 6.28r ≤ 15.1 feet (rounded to the nearest tenth)

Therefore, the largest radius possible for the pool, to ensure the circumference does not exceed 95 feet, is 15.1 feet.

Hannah finds purple, blue, and silver space rocks while exploring.
2
3
of the rocks are purple and
3
4
of the remainder are blue. If there are 3 silver rocks, how many space rocks does Hannah have?

Answers

Answer:

There were 36 space rocks in total.

5 divided by 7 over 10

Answers

0.071428571428571 is that what your asking

Answer:

1 over 14

Step-by-step explanation:

reduce the expression, if possible. by canceling the common factors.

12 with the exponer of -6 times 12 with the exponent of -5

Answers

Answer:

[tex] {12}^{ - 11} [/tex]

Step-by-step explanation:

The expression to be simplified is

[tex] {12}^{ - 6} \times {12}^{ - 5} [/tex]

We can see that the expression involves the idea of indices.Thus,we need to consider one of the laws of indices when dealing with the expression.

One of the laws of indices states that,

[tex] {a}^{m} \times{a}^{n} = {a}^{m + n} [/tex]

This means that when multiplying indices and the bases are equal, you repeat one of the bases and add the exponents.

This implies that

[tex] {12}^{ - 6} \times {12}^{ - 5} = {12}^{ (- 6 - 5)} [/tex]

Simplifying the exponent we obtain

[tex] = {12}^{ - 11} [/tex]

A truck rental company rents a truck for a one-time fee of $25 plus $1.50
per mile traveled. Kelly has $80 she can spend on the rental truck. What is
the greatest number of miles that she can travel?

Answers

Final answer:

Using the cost equation C = $25 + ($1.50 x M), we solve for the greatest number of miles Kelly can travel with an $80 budget, which is 36 miles after rounding down to the nearest whole number.

Explanation:

To determine the greatest number of miles Kelly can travel, we use the equation provided by the truck rental company. The total cost of renting a truck is composed of a one-time fee and a per-mile charge. To begin, we subtract the one-time fee from the total budget to find out how much money is left for the per-mile charges.

The equation representing the total cost (C) for the miles (M) driven is:

C = $25 + ($1.50 × M)

Kelly has $80 to spend, so we set the total cost equal to $80:

$80 = $25 + ($1.50 × M)

Now, we solve for M:

$55 = $1.50 × M

M = $55 / $1.50

M = 36.67

Since Kelly cannot travel a fraction of a mile, we round down to the nearest whole number. The greatest number of miles Kelly can travel is 36 miles.

Harry saved $100 each week for 8 weeks. He earned $48 on his savings of $800. What interest did Harry earn for every $100?

Answers

Explanation:

In this problem, we know that Harry saved $100 each week for 8 weeks. In other words, he saved a total amount of money:

[tex]\text{Amount of money saved}=8\times 100=\$800[/tex]

We know that he earned $48 on his savings of $800, so for every $100 the interest (I) he earns is:

[tex]I=\frac{48}{8}=\$6[/tex]

So, in conclusion Harry did earn $6 in interest for every $100

Please help. I’ll mark you as brainliest if correct!

A motorcycle shop maintains an inventory of five times as many new bikes as used bikes. If there are 65 new bikes, how many used bikes are now in stock?

Answers

Answer:

Step-by-step explanation:

65=5x (5x means 5 X as many bikes)

so 65=5x

x=13 bikes in stock (65 is divisible by 5)

A group of 15 friends travel to Washington DC. 2/5 go by bus, 1/3 by metro, and the rest by car. What fraction went by car? How many people went by bus? Metro? Car?

Answers

Answer:

14 4/5 went by car.

Out of 15 friends traveling to Washington DC, 6 went by bus, 5 by metro, and 4 by car, making the fraction that went by car 4/15.

To find out how many friends traveled by each mode of transportation to Washington DC and what fraction went by car, we can follow these steps:

Calculate the number of friends that went by bus: 2/5 of 15 = 6 friends.Calculate the number of friends that went by metro: 1/3 of 15 = 5 friends. (Note that fractions of people aren't possible in real life, so we would have to adjust these numbers; for example, maybe 5 went by metro and 6 went by bus, or vice versa.)For the rest by car, subtract the number of friends who went by bus and metro from the total: 15 - 6 - 5 = 4 friends.

So, the fraction that went by car is 4/15.

Summary of transportation mode:

Bus: 6 peopleMetro: 5 peopleCar: 4 people

What is the measure of minor arc BD?
Angle BCD is a circumscribed angle of circle A. Angle BCA
measures 40°
B
40°
© 50°
80°
100°

Answers

Answer:

[tex]minor\ arc\ BD=100^o[/tex]

Step-by-step explanation:

The picture of the question in the attached figure

we know that

A circumscribed angle is the angle made by two intersecting tangent lines to a circle

so

In this problem

BC and CD are tangents to the circle

BC=CD ----> by the Two Tangent Theorem

That means

Triangle ABC and Triangle ADC are congruent

so

[tex]m\angle BAC=m\angle DAC[/tex]

Find the measure of angle BAC

In the right triangle ABC

[tex]m\angle BAC+m\angle BCA=90^o[/tex]

substitute given value

[tex]m\angle BAC+40^o=90^o[/tex]

[tex]m\angle BAC=90^o-40^o=50^o[/tex]

Find the measure of angle BAD

[tex]m\angle BAD=2m\angle BAC[/tex]

[tex]m\angle BAD=2(50^o)=100^o[/tex]

Find the measure of minor arc BD

we know that

[tex]minor\ arc\ BD=m\angle BAD[/tex] -----> by central angle

therefore

[tex]minor\ arc\ BD=100^o[/tex]

Final answer:

The measure of the minor arc BD is d. 80°, because it is twice the measure of the inscribed angle BCA, which is 40°.

Explanation:

When we are looking for the measure of a minor arc in a circle, and we know the measure of the inscribed angle that subtends that arc, we can find the measure of the arc by understanding that the inscribed angle is half the measure of the arc it cuts from the circle. Given that angle BCA measures 40°, and assuming BCD is an inscribed angle that subtends the arc BD, we can deduce that the minor arc BD is actually twice the measure of the inscribed angle BCA.

Therefore, to find the measure of minor arc BD, we double the measure of angle BCA:

Measure of minor arc BD = 2 × measure of angle BCA
Measure of minor arc BD = 2 × 40°
Measure of minor arc BD = 80° (d.)

The ________ states that if two values a and b are equal when you multiply each by the same value c, the products are equal

Answers

Answer:

The multiplication property of equality states that if two values a and b are equal when you multiply each by the same value c, the products are equal.

Step-by-step explanation:

Multiplication property of equality:

It states that multiplying both sides of the the equation with the same constant or number then the truth value of the equation does not change.That is the equality still holds true.

So, if

[tex]a = b[/tex]

Then, we can write by multiplication property of equality

[tex]a=b\\\Rightarrow a\times c = b \times c\\\Rightarrow ac = bc[/tex]

Thus, the correct answer is

The multiplication property of equality states that if two values a and b are equal when you multiply each by the same value c, the products are equal.

Final answer:

The statement in question highlights the equality property of multiplication, which states that if two values are equal, their products with a same multiplier are also equal. This principle is fundamental in mathematics, particularly in algebra, where it underpins the manipulation and understanding of equations.

Explanation:

The statement "if two values a and b are equal when you multiply each by the same value c, the products are equal" refers to the basic principle of the equality property of multiplication in mathematics. This property underlines that if a = b, then a × c = b × c. This fundamental concept is crucial for understanding algebraic expressions and equations, where the manipulation of variables and constants is based on such properties.

For example, if we assert that 3 (number a) and 3 (number b) are equal and we choose to multiply both by 2 (number c), the resulting products, 6 and 6, are indeed equal. This example clearly illustrates how the equality of products remains consistent regardless of the multiplier, as long as the initial quantities are equal.

This principle is foundational in mathematics and serves as a cornerstone for solving equations, thereby reinforcing the understanding that equality is maintained through operations of multiplication by a constant.

What is the equation of a circle with center (-3,-5) and radius 4?
O A. (x+3)2 + (y + 5)2 = 4
O B. (x-3)2 + (y- 5)2 = 16
O C. (x-3)2 + (y- 5)2 = 4
O D. (x + 3)2 + (y + 5)2 = 16

Answers

Answer:   D) (x + 3)² + (y + 5)²  = 16

Step-by-step explanation:

The equation of a circle is: (x - h)² + (y - k)² = r²    

where (h, k) = center   and    r = radius

Given: (h, k) = (-3, -5)  r = 4

Equation: (x - (-3))² + (y - (-5))² = 4²

                 (x + 3)²  +  (y + 5)²  = 16

(I NEED THIS ANSWERED QUICKLY! I WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER!)

Triangle GHK is dilated by a scale factor of 1.5 about the origin.

What are the coordinates of K’?

A. (-6, 7)
B. (4, -10.5)
C. (6, 10.5)
D. (-6, 10.5)

Answers

Answer:

d

Step-by-step explanation:

the coordinate of k would be (-6,10.5)

d plz give brainliest

a(n) = -1/16 (2) ^n-1 what is the 6th term

Answers

2^5=32
32*(-1/16)=-2
The answer is -2

I would appreciate it if you would help me

Answers

Answer:

Option D, 32

Step-by-step explanation:

Step 1:  Identify the equation

6y = 192

Step 2:  Solve for y by dividing both sides by 6

6y / 6 = 192 / 6

y = 32

Answer:  Option D, 32

Complete Ratio table
8 2
16 4
? 6
? 8
40 10 Help

Answers

Answer:

Step-by-step explanation:

8 2

16 4

24 6

32 8

40 10

???

8-2
16-4
24-6
32-8
40-10

This term is used when cancer spreads from the original site to other parts of the body.

felapse
in situ
metastatic
benign

Answers

Answer:

The answer is metastatic

Explanation:

metastasis is the spread of cancer cells from the place where they first formed to another part of the body. 

The summary statistics for all students that took the SAT at Jones High School are shown. Four sample groups of 10 students are
shown. For which sample group(s) is the mean greater than the mean of the population?​

Answers

Answer:

D)

Step-by-step explanation:

i got it corect on the test

Answer:

i got the wrong answer when i picked d and the answer is group b

Step-by-step explanation:

i really need help with this 19 POINTS!!!

Answers

Answer:

93°

Step-by-step explanation:

Vertical angles have the same measure

Answer:

93%

Step-by-step explanation:

find the relationship between the number of shapes and the perimeter of the figure they form Write an equation to represent this relationship?

Answers

Answer:

p = 3n + 2

Step-by-step explanation:

let n be the number of shapes and p the perimeter

We can construct the following table

n : 1    2    3

p : 5   8    11

The differences in p are constant

8 - 5 = 11 - 8 = 3

Thus p = 3n + ?

n = 1 → 3(1) + ? = 5 ⇒ 3 + ? = 5 ⇒ ? = 2

n = 2 → 3(2) + ? = 8 ⇒ 6 + ? = 8 ⇒ ? = 2

n = 3 → 3(3) + ? = 11 ⇒ 9 + ? = 11 ⇒ ? = 2

We require to add 2 to 3n

Thus

p = 3n + 2

From the 66 male and 88 female sales representatives for an insurance​ company, a team of 44 men and 33 women will be selected to attend a national conference on insurance fraud.In how many ways can the team of 7
be​ selected?

Answers

The answer should be about 36,491,112‬

Sorry for harassing you I've had a less the good day, also sorry if it's wrong I haven't done this type of stuff in a while

A bag contains 15 green, 18 yellow, and 16 orange balls. One ball is randomly selected.
To the nearest percent, what is the probability of the event?
Drag and drop the correct value into the box.
P(yellow) =
31%
33%
37%
42%

Answers

Answer: 37%

Step-by-step explanation:

n( green ) = 15

n( yellow) = 18

n(Orange) = 16

Total = 49

P(yellow) = n(yellow) / Total number

P(yellow) = 18/49

P(yellow) = 0.367

converting to percentage

P(yellow) = 0.367 x 100 = 36.7

To the nearest percent

P(yellow) = 37%

Two times a number, x, plus 3 times a number, y, equals 50. Four times x minus 2 times y equals 4. What are the numbers?
A) x = 7, y = 12
B) x = 19, y = 4
C) x = 10, y= 18
D) x = -11, y = 24

Answers

The answer should be D. If you plug it in,

-11 x 2 = -22 24 x 3 = 72

72 -22 = 50


4 x -11 = -44 2 x 24 = 48

48 -44 = 4
Other Questions
In a dentist's office, an X-ray of a tooth is taken using X-rays that have a frequency of 9.81 1018 Hz. What is the wavelength in vacuum of these X-rays? The marketing managers of Rudolf Ltd., strive so hard to agree on an important decision to launch a product that they ignore information that a similar product already exists in the market and that the barriers to entry into the market are high. This refers to which of the following decision-making processes?A. Dialectical inquiryB. Devil's advocacyC. GroupthinkD. IntuitionE. Representative bias Sally's teacher asked her to classify a microscopic organism found in pond water. The FIRST characteristic Sally used to figure what kingdom the organism belonged to was What does 1+3x-7x equal to Levi Strauss has some of its jean stone-washed under a contract with independent U.S. Garment Corp. If U.S. Garment's operating cost per machine is $30,000 for year 1 and increases by a constant $5,000 per year through year 10, what is the equivalent uniform annual cost per machine for the 10 years at an interest of 10% per year? PLEASE PLEASE HURRY! THANK YOU SO MUCH!!This equation can be used to find h the number of hours it will take flo and bryan to mow the lawnh/3+h/6=1The answer is c. 21. List all needed information from the problem2. Restate the question in your own words, what is it asking you to find (not just x)? 3. What formulas and/or operations do you need to solve this problem? 4. Explain what your variables and values are (if necessary)5. Work out the problems, using numbers and operations and explaining (in words) all steps (include the words "why" and "because", properties) (substituting the answer in is not working out the problem)6. Write your final answer in a sentence, restating the question.7. Why does your answer make sense? This is a good step to show how you checked your work. The third-highest official in the Department of Justice, and the presidential appointee who presents arguments in front of the Supreme Court justices when the government is a party to a case, is called the ______. For the triangle shown, three possible lengths of x, y, and z are given. Find the measurements for the other two sides ineach case Please answer Very urgent.... Anyone please help me..I need it with explanation! Can I get some help please? the estimated population of egypt in 2011 is about 81 million. this is a 1.8% growth rate over the previous year. assuming this continues what would be the population be in 2005? cdl. To drive you need to raise the landing gear only until it just lifts off the pavement. True or False The purpose of a ________ group is to protect data and information assets by establishing data standards and data management practices and policies. Group of answer choices data mining data administration data warehousing data communication data auditors/file/p3e7lbh/9-A-protocol-is-a-set-of-rules-and-data-structures-for-organizing-communication/ The volume of a container varies jointly with the square of its radius, r, and its height, h. Thecontainer has a height of 10 centimeters, and radius of 6 centimeters, and a volume of 377 cubiccentimeters. What is the volume of a container with a radius of 4 centimeters and a height of 4centimeters? 1. All electromagnetic energy is visible.2. Electromagnetic energy is the same thing as heat.3. Ultraviolet has a frequency higher than visible light. 4. The electromagnetic spectrum includes only visible light and infrared.5. Radio waves are not really electromagnetic. 6. Only visible light can transmit through a vacuum. 7. All electromagnetic waves are transmitted, reflected, and absorbed depending on the material they hit. 8. All electromagnetic waves have the same frequency. The basis of the ________ method of test construction is to come up with items that seem directly, obviously, and logically related to what it is you wish to measure. What pollutant forms when automobile emissions react with oxygen gas and ultraviolet rays? 1. The radioactive source you will be working with in this lab is Cs-137. Look up the half-life of this material and report the value in units of seconds. 2. The relationship between decay constant (l) and half-life is: Which is a component of cell theory What are the best approximations of the solutions to this system?