A bookstore is deciding what price it should charge for a certain book. After research, the store finds that if the book's price is $p$ dollars (where $p \le 40$), then the number of books sold per month is $120-3p$. What price should the store charge to maximize its revenue?

Answers

Answer 1

Answer:

$20

Step-by-step explanation:

revenue would be    price * quantity

 p ( 120-3p)

   -3p^2 + 120p   = revenue     max will occur at p = - b/2a = - 120/((2)(-3))

p max rev = 20


Related Questions

what is the name of the shape

Answers

Answer:

triangular prism

Step-by-step explanation:

Have a great day!

Simplify the expression. Write your answer as a power.

Answers

Answer:

Step-by-step explanation:

8 with an exponet of 30 over 8 with an exponent of 8 ( aka ) 240/64

A fabric company can produce 10,200 yards of fabric per year currently. The company's goal is to increase the amount of
fabric it can produce by 450 yards each year. If the company meets its goal, how many total yards of fabric will it have
produced after 9 years?

Answers

The answer is 95,850 because 10,200+450x9years is the equation used

Using the tree diagram below, what is the probability of getting tails and an even number?

Answers

hi the awnser us defiantly going to be that I 56

Step-by-step explanation:

edge

I am greater than -4 and less than 12. I am a multiple of 10. What number am I?

Answers

Answer:

I believe it is 10!

Step-by-step explanation:

The multiples of 10 are: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200 and so on.

The only multiple between -4 and 12 is 10!

Hope this helps!!!!

Is Figure B a scale copy of Figure A?
Figure B
Figure A

Answers

Answer:

yes, if this is the answer you're looking for

Step-by-step explanation:

Yes. The scale factor is 1/2 or Divide by 2

Super Sandwiches offers 4 kinds of breads, 3 kinds of meats, 5 cheeses, and 7 dressings for a sandwich. How many possible combinations would there be for making a sandwich

Answers

Answer:

19

Step-by-step explanation:

Answer:

420

Step-by-step explanation:

7/2 inches by 3/2 inches?

Answers

Answer:

5.25 inches or [tex]5 \frac{1}{4}[/tex] inches

Step-by-step explanation:

I believe that the question is what do they multiply to..? If so, we start by making them both in decimal form:

7 / 2 = 3.5

3 / 2 = 1.5

Now, we multiply:

3.5 * 1.5 = 5.25

If you want fraction form, we can turn .25 to 1/4.

Fraction form: [tex]5 \frac{1}{4}[/tex]

Point P is located at (4, 6) on a coordinate plane. Point P will be reflected over the x-
axis. What will be the coordinates of the image of point P? What transformation was
performed on the given figure
1. (8,4)
2. (4-6)
3. (4,28)
4. (24,4)

Answers

Answer:

2.

Step-by-step explanation:

it's the reciprocal

so it's gonna reflect

Jean estimates that her friend completes a new level of a video game on the first try 20% of the time. She conducts a simulation to predict how many times out of 80 her friend would complete a new level on the first try. Jean uses a random number generator. Every digit that is 8 or 9 represents completing the level. Examine the table. ​

Answers

The probability of the friend completing the new level in her first try is 22.5%

What is probability?

This is a concept that is used to talk about the likelihood or the chances of an event occuring.

For the digit 8, the frequency is 7

For the digit 9, the frequency is 11

The total number of frequencies is given as

10 + 9 + 6+ 7 + 8 + 12 + 4 + 6 + 7 + 11 = 80

7 + 11 = 18

Probability = 18/80

= 0.225 x 100

= 22.5%

Read more on probability here: https://brainly.com/question/251701

Help asap!!! NO LINKS PLS!!

Answers

Answer:

18

Solution:First, evaluate 2^3, which equals 8.Next, evaluate 4^2, which equals 16.This is the simplified expression:3/4(8+16)3/4(24)Multiply:18

Hope it helps.

Do comment if you have any query.

Can someone step by step turn 3y-9x=-81 into slope-intercept form!???

Answers

To turn something into the slope-intercept form

  ⇒ must know the slope-intercept form ⇒ [tex]y = mx +b[/tex]

m: the value of the slopeb: y-intercept

To convert our current form into slope-intercept form

 ⇒ must solve for 'y'

    ⇒ (in other words) move everything to one side and 'y' by itself on the

    other

        [tex]3y - 9x = -81\\3y =9x-81\\y = 3x - 27[/tex]

     *purely extra information (not necessary for final answer)

slope is 3y-intercept is -27

Slope-intercept form: y = 3x - 27

Hope that helps!

(WILL MARK BRAINLIST)
Write an inequality to represent the graph.
у
-5
4
3
(0, 2)
2 1
x
x
-5 -4 -3 -2 -1 0
-1
2
4 5 6 7 8 9 10
(4,-1)
-2
-3
-4
-51
-6
-7
-8
-9
-Previous Question
Question 1 (Answered)

Answers

i believe the answer is the second one

A square pyramid is 6.3 in by 4 in by 4 in what is the surface area of the pyramid

Answers

Answer:

32.2 square feet

The top of a building is 65 meters away from a spot located 16 meters away from the foot of the building what is the height of the building

Answers

Answer:

81

Step-by-step explanation:

65 meters plus the 16 is 81

Answer:

Step-by-step explanation:

AB represent the building. C represents the spot

The building forms right angle with the ground.

BC will be the hypotenuse and AB, AC are the legs

Use Pythagorean theorem,

AB² + AC² = BC²

AB² + 16² = 65²

AB² + 256 = 4225

          AB² = 4225 - 256

                 = 3969

          [tex]AB = \sqrt{3969} =\sqrt{63*63}[/tex]

AB = 63 m

height of the building = 63 m

Given the following graph, define a) the vertex, b) the intercepts, c) the axis of symmetry, and the sign of the lead coefficient.

Answers

Answer:

Option D is correct

[tex]Slope[/tex] [tex]of[/tex] [tex]AC=Slope[/tex] [tex]of[/tex] [tex]DF[/tex]

Step-by-step explanation:

Given:

1.

ΔABC and ΔDEF are similar

Property of similar states that corresponding sides are in proportion.

2.

[tex]\frac{BC}{EF}=\frac{AB}{DE}[/tex] [By property of similar triangles]

Property of proportions allows you to cross multiply the equation.

then;

3.

[tex]\frac{AB}{BC}=\frac{DE}{EF}[/tex]   [Property of proportion]

Definition of slope: Slope is described as the steepness and direction of line.

then by definition of slope;

4.

[tex]Slope[/tex] [tex]of[/tex] [tex]AC=\frac{BC}{AB}[/tex]

5.

[tex]Slope[/tex] [tex]of[/tex] [tex]DF=\frac{EF}{DE}[/tex]

6.

Substitution property of equality states that:

If a = b then a can be substituted in place of b in any equation or vice-versa.

then;

[tex]Slope[/tex] [tex]of[/tex] [tex]AC= Slope[/tex] [tex]of[/tex] [tex]DF[/tex]

Therefore, the missing step in 6 we get,

[tex]Slope[/tex] [tex]of[/tex] [tex]AC= Slope[/tex] [tex]of[/tex] [tex]DF[/tex]

A right triangle has leg lengths of 9 units and 12 units. Write an equation that can be
used to determine the length of the hypotenuse, c .

Answers

The Pythagorean Theorem

The Pythagorean Theorem: [tex]a^2+b^2=c^2[/tex]

a and b are the two legs in a right trianglec is the hypotenuse (the longest side of a right triangle; opposite the 90° angle*keep in mind that this theorem applies only to right triangles

Solving the Question

We're given:

Legs = 9 units and 12 unitsHypotenuse = c

Plug these measurements into the Pythagorean theorem:

[tex]a^2+b^2=c^2\\9^2+12^2=c^2[/tex]

⇒ Combine like terms:

[tex]81+144=c^2\\c^2=225[/tex]

Answer

[tex]c^2=225[/tex]

A beach toy in the shape of a pyramid has a rectangular base with dimensions of 4 inches by 12 inches. The height of the rectangular pyramid is 10 inches.

How many cubic inches of sand is needed to fill the beach toy?

Enter your answer in the box.

Question 1 options:

Answers

The amount of sand needed = volume of rectangular pyramid = 160 cubic inches of sand.

What is the Volume of a Rectangular Pyramid?

Volume of rectangular pyramid = 1/3(base area × height of pyramid)

Given the following:

Base area of the pyramid = 4 in. × 12 in. = 48 in.²Height = 10 in.

Amount of sand needed to fill each beach toy = Volume of rectangular pyramid = 1/3(48 × 10) = 160 cubic inches of sand.

Learn more about volume of rectangular pyramid on:

https://brainly.com/question/1153556

At the beginning of the year, Mrs. Wilkinson's class had 19 packages of colored paper. So far, the class has used 401 pieces of colored paper.
If each package of colored paper contained 75 pieces, how many pieces of colored paper does the class have left?



I need help

Answers

Answer:

1024 pages left

Step-by-step explanation:

19 pack  * 75 page/pack - 401 page =

BRAINLIESTTTTTTTTTTTTTTTTTTTTTTTTTTtt

Answers

Step-by-step explanation below:

Find the solution to the system of equations.
You can use the interactive graph below to find the solution.
y= 22 + 3
y = -3.2 + 3
2=
y =
y

Answers

Answer:

Step-by-step explanation:

y=2x+3

y=-3x+3

**This is what's on the image.**


You need to aline the two together.

2x+3 = -3x+3


Add 3x both sides

3x+2x+3=3

5x+3=3

Now subtract 3 from both sides

5x=3-3

x= 0

This should be a vertical line from (0,0) to above since there is no slope you should have a straight line that is vertical.

Question 4 of 10
What is the probability that a data value in a normal distribution is between a
z-score of -0.28 and a z-score of 0.642 Round your answer to the nearest
tenth of a percent.
O A. 34.9%
O B. 73.3%
O c. 58.1%
O D. 90.9%
SUBIRI

Answers

the answer is D
real explanation: take 0.642 & divide it by -0.28.

a dozen oranges cost 12 pesos so how much do 60 oranges cost

Answers

Find out how much one orange costs (the unit rate:

12 / 12 = 1
Therefore one orange is one pesos

So 60 x 1 = 60

60 oranges costs 60 pesos

The sum of two numbers is 122. The difference of the first number and twice the second number is 23. Find the two numbers.

Answers

Answer:

One is 89 , the other is 33.

Step-by-step explanation:

Set up a system of 2 equations:

x + y = 122

x - 2y = 23        Subtracting:

0 + 3y = 99

y = 33.

So:

x + 33 = 122

x = 122 -33 = 89.

Answer:

first number= 89 and second number= 33

Step-by-step explanation:

here, let the first number be X and the second number be y,then

From the question,

x + y = 122 ---- eq i

x -2y = 23 ----- eq ii

From substitution method,

From eq i,

x + y = 122

or, x =122 - y

Now, putting the vale of x in eq ii,we get,

122 -y -2y = 23

or, -3y = 23-122

or, -3y = -99 (cut minus sign in both sides)

or, y=99/3

or, y = 33

Again, putting the value of y in eq i,we get,

x + 33 = 122

or, x= 122-33

or, x=89

A candelabra holds 5 identical cylindrical candles, each with a diameter of 6 centimeters and a height of 9 centimeters. How many cubic centimeters of wax are in all the candles on the candelabra combined?

Answers

Answer:

Step-by-step explanation:

one candle volume = area of base (circle) × height

V=r²πh

V=6²×π×9

   =36cm²×π×9cm²

  =351π cm³

  ≈1017.36 cm³

then multiply by 5 because there are 5 candles

= 5×351π cm³ = 1755 cm³

≈ 5510.7 cm³

WILL GIVE BRAINLIEST!!!
Solve 3(2x - 3) = 15. Explain ALL steps.

Answers

Answer:

x=4

Step-by-step explanation:

distributive property goes first.

you get 6x-9=15

add 9 on both sides so 9 cancells out on the left side.

you get 6x=24

divide by 6 and you get x=4

3 x 2x = 6x
3 x -3 = -9

6x - 9 = 15
Add nine to both sides of the equal sign
15+9= 24

Divide both sides by 6

24/6= 4

X=4

Tell me if this helps
Please mark me as brainliest

The equation y = 8x 12, where x is the number of hours and y is the total cost, represents what the surf instructor charges for lessons. use this information to describe how to draw the line on a graph.

Answers

Answer:

Use points (0,12) and (1,20) on graphing paper or a program to find final answer.

Step-by-step explanation:

In the problem, I was unable to understand the equation so I am presuming the equation actually means y=8x+12

Whenever you graph a Linear Function you always need two points. The first point is always easy to acquire.

You can plug in any value for x, which will be your x cordinate and the output (solution) of the equation will be you y cordinate.

I'm plugging in 0 for X first.

y=8x+12

y=8(0) +12

y=12

We have our first point as (0,12)

Now you can plug in any other number for X other then Zero.

I choose 1 this time for X.

y=8x+12

y=8(1)+12

y=8+12

y=20

We now have our second point (1,20). Two points will be enough to graph this graph, you can graph these two points and then draw a line if on paper or use an application and get the line that way.

Answer:

Use the rise/run strategy to draw the line. Start at the y-intercept (0, 12), and count 8 up and 1 to the right to the point (1, 20). Then, draw a line through the points. Test the point (3,36) in the equation y = 8x + 12 to verify that the line is correct.

Step-by-step explanation:

got it right

Find the area of the shaded region, if the height of the parallelogram is 41 units.

PLS HELP! WILL MARK BRAINLIEST AND GIVE LOTS OF POINTS!!

Answers

2,242 units

A = l x W

If you put the right triangle on the right of the parallelogram and fit it into the triangular gap on the left, you can see it makes a rectangle.

41 x 62 = 2,542 units

Unshaded region = 25 x 12 = 300 units

2,542 units - 300 units = 2,242 units

Manuel works out at the gym 2 days each week for 3/4 hour each day


how many hours does manuel work out each week?


2 x 3/4 =

Answers

Answer:

1.5, so an hour and thirty minutes

Step-by-step explanation:

Simplify 3/4 as 0.75. 0.75 times 2 is 1.5.

answers needed asap, assignment is due 29, april 2022

Answers

Answer:

The answer is 3

Step-by-step explanation:

Answer:

The unit rate would be 3 dollars per pound!

Other Questions
What operation will transform the following matrix to row echelon form? Associating oneself with negative group representations because there are no alternative images to identify with is HELP PLS I NEED HELP does anyone have any tips for the apush AP test?? . An experimental rocket plane lands on skids on a dry lake bed. If its traveling at 80.0 m/s when it touches down, how far does it slide before coming to rest? Assume the coefficient of kinetic friction between the skids and the lake bed is 0.6. Types of cars people own are an example of which type of data?. An object has a mass of 420 kg and a volume of 7 m3.Find the density of the object in kg/m3. You are writing a how-to pamphlet that explains how to care for a patient who suffers from Alzheimer's Disease. The title is open "Compassionate Care for Alzheimer's Patients: Your Guide to Helping Those You Love. " You will feel that you have accomplished your purpose if your readers _______________A.write to their congressional representatives to stress the need for more funding for Alzheimer's researchB.take steps to prevent themselves from suffering from Alzheimer's DiseaseC.understand the specific medical definition of Alzheimer's DiseaseD.have a set of tips and guidelines for taking good care of the Alzheimer's sufferer they are caring for it ( looks ) nasty or it ( look ) nasty? Given the vector field F= (x3 + y3 + z3 + 3xyz), find div F and curl F. When studying migration, a low cost of living, good jobs, and a mild climateare examples of:O A. voluntary migration.O B. pull factors.O c. push factors.O D. forced migration.1SUBV what is some similarities and differences between america and canada economically Write in full sentences Follow themodel. Suivez le modle. I will mark as brainiest or what ever its called lol. Please helpp O wild West Wind." Is an example of what type of figurative language? Simile alliteration Why does benzilic acid only precipitate in acidic solution. chocolate milk cow answer Susan went to a store and bought 3 items. each item cost the same. she spent 12 . how much did each item cost? Layla is determining the area of the trapezoid. Her work is shown below.A trapezoid has a base of 14 feet, height of 10 feet, and top side length of 8 feet.Step 1: Break the figure into rectangles and triangles.A trapezoid is broken into a triangle and rectangle. The rectangle has a base of 10 feet and a height of 8 feet. The triangle has a base of 10 feet and a height of 6 feet.Step 2: Find the area of the rectangle: 8 times 10 = 80.Step 3: Find the area of the triangle: One-half times 6 times 8 = 24.Step 4: Add the areas together: 80 + 24 = 104 square feet.Which best describes Laylas error?The height of the triangle in Step 1 should be 4 ft.The area of the triangle in Step 3 should be One-half times 6 times 10 = 30.The area of the triangle is Step 3 should be halved because there is only one triangle.The areas in Step 4 should be multiplied instead of added. Restrictions of useRenter shall not:A) Operate the vehicle or permit it to be operated in violation of law.B) Operate the vehicle or permit it to be operated in any kind of race, test or contest.C) Drive or permit it to be operated anywhere outside of the regularly maintained roads of thecity center such as beaches or other surfaces likely to cause damage to the vehicle.D) Operate the vehicle or permit it to be operated for the transport of more than twopassengers or more goods than the maximum allowable for the vehicle.What is Sundip NOT allowed to do with the motorbike?- drive on the beach- drive in the city center- transport a passenger - transport goods