A classroom library has a 100 books. Half of the books are fiction. Of the books left, a tenth are about animals. How many animal books does the library contain?

Answer: 5

Answers

Answer 1

Answer:

5

Step-by-step explanation:

half of 10 is 50 on tenth of 50 is 5


Related Questions

WILL GIVE BRAINLIEST, THANKS, AND 5 STARS!
PLEASE HELP ME!

Answers

Answer:

-4 and 4

Step-by-step explanation:

Method 1

Apply Difference of Two Squares Formula: [tex]a^2-b^2=(a+b)(a-b)[/tex]

Given  [tex]x^2-16=0[/tex]

Rewrite 16 as 4²

Therefore, [tex]a^2=x^2[/tex] and [tex]b^2=4^2[/tex]

[tex]\implies a = \sqrt{x^2}=x[/tex]

[tex]\implies b=\sqrt{4^2} =4[/tex]

[tex]\implies x^2-16^2=(x+4)(x-4)[/tex]

[tex]\implies (x+4)(x-4)=0[/tex]

[tex]\implies (x+4)=0 \implies x=-4[/tex]

[tex]\implies (x-4)=0 \implies x=4[/tex]

Method 2

Given equation:

[tex]x^2-16=0[/tex]

Add 16 to both sides:

[tex]\implies x^2-16+16=0 + 16[/tex]

[tex]\implies x^2=16[/tex]

Square root both sides:

[tex]\implies \sqrt{x^2}=\sqrt{16}[/tex]

[tex]\implies x=\pm4[/tex]

Therefore, x = -4, x = 4

Mitch tried to solve an equation step by step.
7.7 = W - 2
7.7 – 2 = W - 2 + 2 Step 1
5.7 = w

Answers

Answer:

Mitch did not make a mistake

Step-by-step explanation:

The -2 and 2 on the right side cancel out and so you are left with 7.7-2=w. Combine like terms and your left with 5.7=w

Step 1 is done wrong

When simplifying this I would notice that one side is subtracting 2 (a rational number) and that the other also has a rational number.
To simplify this, you have to get rid of the -2 by canceling it out. You can do this by adding 2 on both sides (you have to add 2 to both sides to make sure both sides of the equal sign are equal).

So instead of subtracting 2 on one side and subtracting 2 on the other, you are supposed to add 2 to both sides.
They solved the second step correctly

Hope this helps!

The manager at Green Tee's golf course conducted a study to see how long it takes to complete a round of golf. The manager records the

time it takes randomly selected golfers to finish a round of golf at Green Tee's golf course. The manager conducts the survey on a golf league

day, therefore all the golfers within the sample have previous golf experience. Based on the study, the average time spent to complete a

round of golf was 4 hours.

What inference can be made from the survey?

Answers

The Inference that can be made from the survey is: B. On average, it will take 4 hours to complete a round of golf at Green Tee's golf course.

What is survey?

Survey can be defined as the process of collecting data or informationso as to reach or draw a conclusion.

The survey analysis shows that it will take an average of 4 hours for an experience golfers to complete or finish a round of golf based on the fact that the golfers all had previous experience.

Therefore on average, it will take 4 hours to complete a round of golf at Green Tee's golf course.

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Which statement is true about the equation (x – 4)(x 2) = 16?

Answers

The roots of the given quadratic equation are 6 and -4.

The given quadratic equation is:

[tex](x-4)(x+2)=16[/tex]

What is a quadratic equation?

Any equation of the form [tex]ax^{2} +bx+c=0[/tex] is called a quadratic equation where [tex]a\neq 0[/tex].

[tex]x^{2} -2x-8=16[/tex]

[tex]x^2-2x-24=0[/tex]

[tex]x^{2} -6x+4x-24=0[/tex]

[tex]x(x-6)+4(x-6)=0[/tex]

[tex](x-6)(x+4)=0[/tex]

[tex]x=6[/tex]

[tex]x=-4[/tex]

Hence, the roots of the given quadratic equation are 6 and -4.

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Answer:

The factored form of the equation is (x + 4)(x – 6) = 0.

(option C)


The radius of a circle is 20 centimeters.
What is the circumference, in centimeters, of the circle? Round your answer to
the nearest tenth.
Response:

Answers

Answer:

The circumference is 125.7cm

circle formula - 4/3(pi)r^3
substituting in the radius makes the equation 3/4(pi)20^3
which equals 33,493.333333..
to the nearest tenth the answer is 33,493.3 :)

PLEASE HELPPP!!! I will give brainly points

Answers

Answer:

should be a. took the test and It was horrible. I remember trying and forgot how to do everything beother

Step-by-step explanation:

no balls

PLEASE HELP ME WITH MY MATH WHO EVER GETS IT GETS BRAINLIEST

Answers

Answer:

don't use this this is just a guess but I think that it is the lowest possible one so A It coulld be wrong

Step-by-step explanation:

E

Step-by-step explanation:

A construction team builds a brick wall in 2 weeks. At the end of the
first week, the wall is 3.6 meters high. During the second week, the
team makes the wall 2.25 meters higher. The final height of the wall is
1.3 times the originally planned height.
How tall was the wall originally going to be?

Answers

Answer:

no idea sorry

Step-by-step explanation:

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

14,19,16,13,16,14
The median is
.


Question 2
Find the mode(s) of the data.


13
13

14
14

16
16

19
19

There is no mode.
There is no mode.

Answers

Answer:

the median is 15, there is no mode.

Step-by-step explanation:

to find the median- put the numbers in order from least to greatest (13,14,14,16,16,19) use a sheet of paper and cross off each number on the ends until you get to the middle. Once you have reached the middle you should have the two numbers 14, 16. Take 14 and 16, add them together and you will get 30. Divide 30 by 2 because there is two numbers for the median. You should end with 15 as your median.

to find the mode- find the number that occurs the most in the set of numbers, in this case all numbers occur the same amount of times, so therefor there is no mode.

happy to help<33.

How could you define area?

Answers

[tex] \huge\fbox\green{ANSWER} [/tex]

Area is the amount of space taken up by a 2D shape

Answer:

The area is the extent or measurement of a surface or piece of land. You find out the area by doing the height x the Width.

Hope this helps..

Step-by-step explanation:

Martha's class is making banners to fly outside of the school. Each banner will be in the shape of a triangle with a base of 12 inches and a height of 20 inches The class needs 12 banners. How much material will they need?​

Answers

Answer:

1440 square inches of fabric

Step-by-step explanation:

Answer:

1440 square inches of fabric

Step-by-step explanation:

Solve for 1 banner

Area of 1 banner:

12*20/2

12*10

120.

12 banners,

12*120

= 1440 square inches of fabric

(or other types of material)

If 10 lemons are required to make 15 cups of lemonade at what rate are lemon being used per cup of lemonade

Answers

Answer:

2/3 lemon's per cup.

Step-by-step explanation:

10÷15=2÷3 .

Please give me brainliest.Thank you. :-):-)

Help!! I need to pass this class by the end of this week!!!!

Answers

It’s -3 and 1 because the horizontal line is the x-axis and there are only two interceptions

PLEASE HELP ME ASAP!!!!! I WILL GIVE YOU 30 POINTS!
For each equation, draw a tape diagram and find the unknown value.
Part A:x+9=16
Part B:4⋅x=28

Answers

Answer:

Part A=7

Part B=7

Step-by-step explanation:

Part A = 7+9=16

Part B = 4 times 7= 28

Rebbeca needs a box with a rectangular base of 36 cm^2 and a volume of 180 cm^3. What would be the height
of the box?

Answers

Answer:5cm

Step-by-step explanation: Area =length × breadth

Volume = length ×breadth ×height

180= Area ×height

180 = 36×h

180÷36=h

Ans 5

2. You are making wooden picture
frames of different sizes but you
have limited supplies, so you are
restricting the perimeter of each
frame to 4 feet or less and the length
to exactly 1.5 feet. Find the range of
the frame width. Show your work.

Answers

The range of the frame width for the considered case is 0.5 (feet), because for this case, it can be at max of 0.5 feet, and at minimum of 0 feet.

What is the range of a particular data set?

For a set of data, the range is the difference between the maximum and minimum value. It sort of gives an idea of spread of the data.

For this case, we're given that:

Frame is rectangular (assumingly).The perimeter of the frame ≤ 4 feetThe length of the frame = 1.5 feet

Perimeter of a rectangle = 2(length + width)

Let 'l' denotes length, and 'w' denotes width, then we get:

[tex]Perimeter \leq 4\\2(l+w) \leq 4\\2(1.5 + w) \leq 4\\\\\text{Dividing both the sides by 2}\\\\1.5 + w \leq 2\\\\\text{Subtracting 1.5 from both the sides so as to get 'w' on one side}\\\\w \leq 0.5[/tex]

Now since the lowest value of width of a frame can be zero only, therefore, we get:

[tex]0 \leq w \leq 0.5[/tex]

Thus, the range of values 'w' can assume is: 0.5 - 0 = 0.5

Thus, the range of the frame width for the considered case is 0.5 (feet), because for this case, it can be at max of 0.5 feet, and at minimum of 0 feet.

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What is the range of the function shown in the graph below?

A. x ≥ 0

B. y ≤ 0

C. x ≤ 0

D. y ≥ 0

NO TROLLING OR LINKS OR I WILL REPORT. ​

Answers

Answer:

A

Step-by-step explanation:

Answer:

Correct answer is: B: y ≤ 0

Step-by-step explanation:

Sunny is a volunteer at the animal shelter. The animal shelter has only dogs and cats. 3
10
of the animals are dogs. There are 8 fewer dogs than cats. How many animals are there in the animal shelter?

Answers

Answer: 14 Animals

Step-by-step explanation: Made of 3 dogs and 11 Cats

Dogs( 11-8)

P: 800
Situation:
r-3.5
How many years will it take for the account to
reach $14,000? Round your answer to the
nearest hundredth.
Enter the correct answer.
Tina wants to save money for school.
Tina invests $800 in an account that
pays an interest rate of 7.5%.
DONE
C.

Answers

Answer:

huhh

Step-by-step explanation:

Someone help me please

Answers

Answer:

Step-by-step explanation:

60. Students were asked to write a trinomial that could not be factored using integers.
Patricia wrote: x2 + 5x - 14
Shelly wrote: x2 - x - 30
Melanie wrote: x2 + 4x - 2
Lisa wrote: x2 + 4x - 5
Which student followed the given directions?
-
-

Answers

Melanie write the quadratic equation x^2 + 4x - 2 according to the directions that write a trinomial that could not be factored using integers.

What is a quadratic equation?

Any equation of the form [tex]\rm ax^2+bx+c=0[/tex]  where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

Patricia wrote:

[tex]\rm x^2+5x-14=0\\\\\rm x^2 -2x+7x-14=0\\\\\rm (x-2)(x+7)[/tex]

Shelly wrote:

[tex]\rm x^2-x-30=0\\\\\rm x^2-6x+5x-30=0\\\\\rm (x-6)(x+5)=0[/tex]

Melanie wrote:

[tex]\rm x^2+4x-2=0[/tex]

Here is the value of D:

[tex]\rm D = \sqrt{4^2-4(1)(-2)}[/tex]

D = √24

Lisa wrote:

[tex]\rm x^2+4x-5=0\\\\\rm x^2-x+5x-5=0\\\\\rm (x-1)(x+5)[/tex]

Thus, Melanie write the quadratic equation x^2 + 4x - 2 according to the directions that write a trinomial that could not be factored using integers.

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D = x4 + 5x – x2 + x - 1
E = x4 - 4x3 - 2x2 + 2

D + E?

D - E?​

Answers

Answer:

D + E = 2x⁴ + x³ –  3x²   + x + 1

D - E  = 9x³ +  x²   + x – 3

Step-by-step explanation:

D = x⁴ + 5x³ – x² + x – 1

E = x⁴ – 4x³ – 2x² + 2

D + E :                                                   D - E :

 x⁴ + 5x³ –  x²   + x – 1                          x⁴ + 5x³ –  x²   + x – 1  

+                                                         –                                                                  

 x⁴ – 4x³ – 2x² + 0 + 2                         x⁴ – 4x³ – 2x² + 0 + 2

_________________                      _________________

2x⁴ + x³ –  3x²   + x + 1                          0  +  9x³ +  x²   + x – 3

                                                       

Hello, I reallly neeeeeed your help! This is due in 45 minutes and Im so confused.!!

Answers

Answer: just graph it using the x and y coordinate points

Step-by-step explanation:

Answer:

(-4, -2)

Step-by-step explanation:

Rewrite the equations to make y the subject, so that it's easier to calculate the points on each line:

Equation 1

x - y = -2

⇒ x + 2 = y

⇒ y = x + 2

Equation 2

2x - 3y = -2

⇒ 2x + 2 = 3y

⇒ y = (2/3)x + 2/3

Calculate 2 points on each line:

Equation 1  (blue line on attached graph)

Substitute x = 0 and x = -2 into Equation 1 to create 2 points:

x = 0:   y = 0 + 2  ⇒ (0, 2)

x = -2:   y = -2 + 2  ⇒ (-2, 0)

Plot the points and draw a line through them.

Equation 2 (red line on attached graph)

Substitute x = 2 and x = -1 into Equation 1 to create 2 points:

x = 2:   y = (2/3)(2) + 2/3  ⇒ (2, 2)

x = -1:   y = (2/3)(-1) + 2/3  ⇒ (-1, 0)

Plot the points and draw a line through them.

Solution

The solution is the point where the two lines intersect.

Therefore, the point of intersection is (-4, -2)

Question 4 options:

y = -2


x = -2


x = 0


y = -1

Answers

Answer:

i think its y=-1

Step-by-step explanation:

hope u get it right

Melissa and tomas are playing a game with complex numbers. if melissa has a score of 5 – 4i and tomas has a score of 3 2i, what is their total score? 8 – 6i 8 6i 8 – 2i 8 2i

Answers

The total score of Melissa and Tomas who are playing a game with complex numbers is 8-2i.

What is complex number?

A complex number is the combination of real and imaginary number. It can be written as,

[tex]a+bi[/tex]

Here, (a) is a real number and (b) is an imaginary number.

Melissa and Tomas are playing a game with complex numbers.  Melissa has a score of 5 – 4i and Tomas has a score of 3 2i. The sum of their score is,

[tex]S=5 -4i +(3+2i)\\S=5+3-4i+2i\\S=8-2i[/tex]

Hence, the total score of Melissa and Tomas who are playing a game with complex numbers is 8-2i.

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Answer:

8-2i

Step-by-step explanation:

c

Theo started to solve the quadratic equation (x 2)2 – 9 = –5. he added 9 to both sides and the resulting equation was (x 2)2 = 4. next, he took the square root of each side. which was the resulting equation of that step? x 2 = ±4 x 2 = ±2 x 2 = ±8 x 2 = ±16

Answers

The resulting equation of that step is the square root of  (x + 2)²  is  (x + 2).

What is the square root function?

A square root function is defined as a one-to-one function that takes a positive number as an input and returns the square root of the given input number.

From there, it was pretty easy for Theo to find the solutions

to the original equation.

If  (x + 2) = +2 , then  x = 0 .

If  (x + 2) = -2 , then  x = -4

Hence, the resulting equation of that step is the square root of  (x + 2)²  is  (x + 2).

To know more about the square root function click the link given below.

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The potential energy of an object varies jointly with the mass of the object and the height of the object off the ground. a 25-kg object has 980 joules of potential energy when it is 4 meters off the ground. another object has 150 joules of potential energy at 3 meters off the ground. what is the mass of the second object? round to two decimal places. 0.32 kilogram 2.88 kilograms 5.10 kilograms 45.90 kilograms

Answers

The mass of the object which is at 3 meters off the ground (earth assumingly), with the potential energy of 150 joules is given by: Option C: 5.10 kg

What is gravitational potential energy?

Gravitational potential energy is the energy which a body posses because of its position.

The gravitational potential energy of a body is given as,

[tex]U=mgh[/tex]

Here, (m) is the mass of the body, (g) is the gravitational accelaration and (h) is the height of the body.

Here, for the second object, we have:

Potential energy = 150 joulesDistance from the ground = 3 mg = gravitational acceleration = [tex]9.8 \: \rm m/s^2[/tex]

Let its mass be m kg, then:

[tex]U=mgh\\\\150 = m(9.8)(3)\\\\m = 50/9.8 \approx 5.10 \: \rm kg[/tex]

Thus, the mass of the object which is at 3 meters off the ground (earth assumingly), with the potential energy of 150 joules is given by: Option C: 5.10 kg

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Anybody knows this?? 3x^2+6x-10 + 3x+5

Answers

Answer:

3x2+9x−5

Step-by-step explanation:

You just have to add the like terms

Answer:

3x² + 9x - 5

Step-by-step explanation:

Group like terms:

3x² + 6x - 10 + 3x + 5

3x² + 9x -5

hope this helps :)

a flower shop is selling 2 roses for $84.00. What is the cost, in dollars, per rose?

Answers

Answer:

42

Step-by-step explanation:

2x = 84

x = roses

x = 84/2

x = 42

Answer:

$42.00

Step-by-step explanation:

You divide 84 by 2 and find the answer 42. Therefore, each rose is 42 dollars.

What is the area if this parallelogram?​

Answers

Answer:

32

Step-by-step explanation:

Other Questions
Wolves are exceptional pack hunters. This is why they are able to take down large prey such as moose or deer by working together as a seamless team. Wolf pups as young as eight months old begin helping on the hunt. Wolves can reach speeds of up to 40 miles per hour when chasing prey, and their thick, double-coated fur enables them to keep warm in even the coldest arctic temperatures. Their large, powerful paws can reach up to 5 inches across and help to propel them quickly across the snow.Select the statement from the text that demonstrates the text's structure in "The Wolves Among Us". Their large, powerful paws can reach up to 5 inches across and help to propel them quickly across the snow. This is why they are able to take down large prey such as moose or deer by working together as a seamless team. Wolf pups as young as eight months old begin helping on the hunt. Wolves are exceptional pack hunters. What is the difference between an introduced and an invasive species?a) An introduced species is new to the ecosystem; an invasive species has been there a long time.b) An introduced species is brought in on purpose; an invasive species is brought in by accident.c) An introduced species is not necessarily harmful to the environment; an invasive species has a negative effect.d) An introduced species is added in by humans; an invasive species enters new ecosystems on its own.An introduced species is added in by humans; an invasive species enters new ecosystems on its own. I dont know what 1+ 1 is ? The graph represents the population trends for insects and the climatic factors during each month in an ecosystem.Which conclusion does this graph support?A The number of insects was fewer in October when there was a drop in the relative humidity and rainfall.B The number of insects was higher in February when there was a drop in the average temperature and rainfall.C The number of insects was fewer in December when there was a rise in the average temperature and relative humidity.D The number of insects was higher in March when there was a rise in the average temperature and relative humidity. The mean of the following data is 20.7. Find the value of p 15 25 25 D 3 10 25 7 Your friend is pregnant with her first child. She wonders if she could have an occasional glass of wine with dinner. After reading the chapter, what do you advise?. A line passes through the point (-6, 9 and has a slope of 3 Write an equation in point-slope form for this line. Mia started cleaning at 10:46am and finished at 11:33am The abolitionist movement in the 1850s is best described asO influential.O unknown.O declining.O weak. How does love or the lack of love affect the life of Elizabeth in "Frankenstein" healthy soil is able to provide all the nutrients that support plant growth and to do so year after year what biotic or a abiotic factor directly supplies these nutrients Which line suggests the theme "nature offers a place of rest for those who are weary"? excerpt from green river by william cullen bryant when breezes are soft and skies are fair, i steal an hour from study and care, and hie me away to the woodland scene, where wanders the stream with waters of green, 5 as if the bright fringe of herbs on its brink had given their stain to the wave they drink; and they, whose meadows it murmurs through, have named the stream from its own fair hue. What was the outcome of WWI the car is traveling at 80 kilometers per hour. what is the slope of the line? Which of the following choices evaluates -2x + 4x, when x = -2?A. -8B. 8C. -16D. None of these choices are correct How does the description "Careless she is with artful care, / Affecting to seen unaffected" characterize the women in the poem?The answer choices The growth of textile mills throughout New England in the early 1800s was made possible mostly because of why do you think it would be important to say what churchill did after defeat ? What is the solution to the system of equations?x + y - 10 and3x - y 2O (3, 3)O (3,7)O (7,3)O (7,7) if relative density is equal to 1 then the substance would sink in water ..true or false