Suppose you have a bag of marbles. You know that there are 10 marbles in the bag,
but you do not know what colors they are. You select a marble 40 times, each time
recording its color before putting it back. In 8 out of 40 trials you select a purple
marble.
Based on the data, how many purple marbles do you estimate are in the bag? Explain
your prediction

Answers

Answer 1

Answer:

8 out of 40 trials- 8/40

simplify that and it becomes 1/5

1/5 of 10 is 2

so, I'd estimate there are 2 purple marbles.


Related Questions

HELPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answers

Answer:

1. +25

2. +14

3. -10

4. -3

5. +2

Step-by-step explanation:

I hope these help , please tell me if i got any incorrect or misunderstood!

At an ice cream social, 56 people ordered chocolate ice cream while 32 people ordered vanilla
ice cream.
(a) What is the ratio of the number of people
who ordered chocolate to the number of
people who ordered vanilla in simplest
terms?
(b) At a different event, 42 people bought
chocolate and 30 bought vanilla. Does
this event have the same
chocolate to vanilla purchases as the ice
cream social from (a)? Justify.
ratio of

Answers

a) 56:32
= 7:4 (simplified)

Find the probability of drawing a Club 2 through 6 on the first draw, replacing it and
drawing a black card on the second draw.

Answers

Answer:

= 0.0471 or 4.71%

Step-by-step explanation:

(5/52) x (25/51)

= 0.04713423831

4.71% this is your answer hope it helps

Help me out , I’ll appreciate it !

Answers

Answer:

(a) Infinite

(b) 6 (because a to z contains 26 letters so we can only take 26 letters or less otherwise the letter can be repeated so we have to take the num which is coming in table of 4 so 24then we can make 6passwords)

THANK you

If you helped with my answer pls tag me brianliest....

The average number of people who attended football games at a stadium increased from 8000 people in the year 2005 to 12500 people in the year 2012. By what percentage did the average number of people at the games increase from 2005 to 2012?

Answers

Answer: 43.75%

Step-by-step explanation:

The percentage change is given by:

= [Final value - initial value / Initial value] x 100

The percentage increase in the average number of people from 2005 to 2012 is 56.25%.

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying it by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

We have,

The average number of people in 2005 = 8000.

The average number of people in 2012 = 12500.

The change in the average number of people from 2005 to 2012.

= 12500 - 8000

= 4500

The percentage change in the average number of people at the games from 2005 to 2012.

= [Change in the average number of people / Average number of people in 2005] x 100

= (4500 / 8000) x 100

= 450/8

= 56.25%

Thus,

The percentage increase in the average number of people from 2005 to 2012 is 56.25%.

Learn more about percentages here:

https://brainly.com/question/11403063

#SPJ6

PLEASE GEOMETRY HELP WILL MARK BRAINLIEST!!!

Answers

13/2, 6 should be the answer

I need helppp I’m stuck

Answers

K (-3,-3)
L (1,-1)
M (-1,-5)
N (-5,-7)

(-8,-2);m=3/4 in point slope form

Answers

Answer:

         y + 2 = ³/₄(x + 8)

Step-by-step explanation:

The point-slope form of the equation that describes the line with a slope of m and containing the point (x₀, y₀) is: y - y₀ = m(x - x₀)

m = ³/₄

(-8, -2)  ⇒    x₀ = -8,  y₀ = -2

Therefore:

y - (-2) = ³/₄(x - (-8))

y + 2 = ³/₄(x + 8)

Please help


If 100% = Rs. 120, then


A. 120% = Rs. 84
B. 20% = Rs. 84
C. 70% = Rs. 84
D. 30% = Rs. 84​

Answers

Answer:

Simple: C. 70% = Rs. 84

Step-by-step explanation:

cause it can't be 120% if Rs.120 is the 100%

A square mat has an area of 324 square inches. What is the length of the mat?

Answers

L=324^(0.5)= 18 inches

7
x 16
00
What is the correct answer for this problem?

Answers

Answer:

11200

Step-by-step explanation:

is that right

Q7: Subtract

(a) -6x – 3 from 2x – 5,

(b) 6x – y + 5z from 10x – 2y + z,

(c) 8p + 99 – 5rs from 4p – 49 + 15sr,

(d) 8a – 3b + 50 – 4d from 10a – b - 40 - 8d.​

Answers

Here is your answer

HELP PLEASE QUICKLY
How many solutions does this system of equations have? Explain.
y = x + 1
y = 2x + 2

The system of equations has ... solution.

The equations have ... slopes, so the lines intersect at ... point.

Convince Me!

The equations of a system have the same slopes. What can you determine about the solution of the system of equations?

Answers

Answer:

The system of equations has one solution. The equations have different slopes, so the lines intersect at one point.

If a system of equations have the same slope, then the lines will run parallel to each other and never cross, leading to no solution being possible. Or if they have the same slope and same y-intercept (therefore being equations for the same line), they will have an infinite number of solutions.

Step-by-step explanation:

The solution to a system of equations is the point where the lines intersect. Looking at this question if we remember the slope-intercept form y=mx+b where m is slope and b is the y-intercept. We can see m=1 for the first equation and m=2 for the second equation. Anytime two equations have different slopes it is guaranteed they will intersect at some point leading to one solution.

What is the area of this shape hurry

Answers

Answer:

15 units squared

Step-by-step explanation:

sorry if im wrong

Answer:

12

Step-by-step explanation:

Area of triangle + area of square + area of triangle = total area

(Area of a triangle: A = 1/2bh)

(Area of a square: A = bh)

Area of smallest triangle =

A = 1/2 (2) (2) = 2

Area of largest triangle=

A = 1/2 (2) (6) = 6

Area of the square =

A = 2 x 2 = 4

Total shape:

2 + 4 + 6 = 12

helppp
What is the equation of the line that passes through the point (-4,4) and has a
slope of 3/4 ?

Answers

Answer:

y = 3/4x + 7

Step-by-step explanation:

Put it in point-slope form:

y - 4 = 3/4(x - -4)

y - 4 = 3/4(x + 4)

y - 4 =3/4x + 3

y = 3/4x + 7

Ben earned $ 400 mowing lawns this month. Of his earnings, he plans to spend 18% repairing
lawn equipment, deposit 20% in his savings, and use 35% for clothes. He will spend the rest.
How much will Ben have left to spend Show your work. help ill mark brainlessly

Answers

Answer:

K 110

Step-by-step explanation:

Find the amount to be spent for each item/service

18% of $400= $72

20% of $400= $80

35% of $400= $140

Now, add all his expenditures and subtract it from his income

$400 - ($72+$80+$140) = $400 - $290 = $110

Which equation represents a circle that contains the point (-5, 3) and has a center at (-2, 1)? Distance formula: vaa -02 (x - 1)2 + ( + 2)2 = 25 (x + 2)2 + (-1)=5 O (* + 2) + (-1) - 25 (x-1) + ( + 2) = 5

Answers

Given:

The center of the circle = (-2,1).

Circle passes through the point (-5,3).

To find:

The equation of the circle.

Solution:

Radius is the distance between the center of the circle and any point on the circle. So, radius of the circle is the distance between the points (-2,1) and (-5,3).

[tex]Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

[tex]r=\sqrt{(-5-(-2))^2+(3-1)^2}[/tex]

[tex]r=\sqrt{(-5+2)^2+(2)^2}[/tex]

[tex]r=\sqrt{(-3)^2+(2)^2}[/tex]

On further simplification, we get

[tex]r=\sqrt{9+4}[/tex]

[tex]r=\sqrt{13}[/tex]

The standard form of a circle is:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Where, (h,k) is the center of the circle and r is the radius of the circle.

Substitute h=-2, k=1 and [tex]r=\sqrt{13}[/tex].

[tex](x-(-2))^2+(y-1)^2=(\sqrt{13})^2[/tex]

[tex](x+2)^2+(y-1)^2=13[/tex]

Therefore, the equation of the circle is [tex](x+2)^2+(y-1)^2=13[/tex].

Anyone know the answer to this

Answers

Answer:

The answer is B

Step-by-step explanation:

3/4

ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

What is the value of c ?

Answers

Answer:

34

Step-by-step explanation:

:)

Answer:

34

Step-by-step explanation:

Remember that the sum of the angles of a triangle is 180

And since two sides are congruent b = 73

So 180-(73+73) = 34

Solve for x. 5:1::6:x

Answers

Answer:

Step-by-step explanation:

5/1 = 6/x

5x = 6

x= 6/5

Answer:

x

=

15

Step-by-step explanation:

can u help me with this ​

Answers

Answer:

245 degrees

Step-by-step explanation:

The circle is 360 degrees and you have only found 55 and 60  you add those together and you will get 115 to find jk you first add the numbers you have then minus them with 360 because its a circle. 360-115 will be 245 that would be your answer.

Answer:

120 degree

Step-by-step explanation:

jn-60 vwrtical oopsite angle

nk 180

jk 180-60

Need help pleaseee someone

Answers

Answer:

Step-by-step explanation:

Joy and Joey share a 18-ounce bucket of clay. By the end of the week, Joy has used
1
6
of the bucket, and Joey has used
2
3
of the bucket of clay. How many ounces are left in the bucket?

Answers

3 ounces
explanation: 1/6 of 18 is 3 so 18-3= 15 and 2/3 of 18 is 12 so 15-12=3 ounces

What is the volume of the shaded solid? Round to the nearest tenth of a cubic unit. 11.6 units3 45.4 units3 57.0 units3 68.6 units3

Answers

Answer:

45.44units^3

Step-by-step explanation:

Volume of the shaded part = Volume of the triangular based prism - Volume of square based prism

Volume of prism = Base area * Height

Volume of the triangular based prism = (5 * 4 * 5.7)/2

Volume of the triangular based prism = 57units^3

Volume of square based prism = 1.7* 1.7 * 4

Volume of square based prism = 11.56units^3

Taking the difference

Volume of the shaded solid = 57 - 11.56

Volume of the shaded solid  = 45.44units^3

Answer:

B

Step-by-step explanation:

URGENT PLEASE HELP!!!! GIVING BRAINLIEST!! If you answer this correctly ill answer some of your questions you have posted! (29pts)

Answers

Answer:

C

Step-by-step explanation:

Answer:

D. 9.95 in

Step-by-step explanation:

law of sines

(sin(B)/b)=(sin(C)/c)

sin(56)/x=sin(90)/12

sin(56)/(sin(90)/12)=x

9.95=x

Hope this helps :)

{4x − 3y = −32x + 6y = −4 Solve the system of equations.
Input your answer as a point.

Otherwise, enter "No solution" or "Infinite number of solutions.

Answers

Answer:

Sorry I don't know that one

Math is garbage and it sucks please help before I smash my laptop with a brick

Answers

Answer:

7x+66=122

Hope this helps =]

Answer:

7x+66=122

Step-by-step explanation:

x+x+x+x+x+x+x+66=122

7x+66=122

7x=56

x=8

A swimming pool is treated periodically to control harmful bacteria growth.
The concentration of bacterial per cm³ after t days is given by
C(t)
[tex] = 30t^2 -240t + 500 [/tex]
in how many days after a treatment will be concentration be minimal ?

Answers

Answer:

The answer is 4

Step-by-step explanation:

[tex]c \: (t) = {30ft}^{2} = - 240t + 500[/tex]

For a quadratic function as given to find the minimum you need to write it in vertex or find the vertex (the vertex in a quadratic function is thr maximum or minimum).

Use the next formula to find the t coordinate of the vertex (the time in the minimum concentration of bateria):

[tex]c \: (t) = {at}^{2} + bt + c \\ \\ tm = - \frac{b}{2a} [/tex]

For the given function:

[tex]tm = - \frac{ - 240}{(2)30} = \frac{240}{60} = 4[/tex]

The minimum concentration of bacteria will be after 4 days.

Compare. Fill in the blank using <,>,or =

16. -2/3_____-1

17. -1 3/4_____1 5/6

18. -2/7______0​

Answers

16. <
17.>
17. =
I hope this right

Find the LARGEST of three consecutive numbers if their sum is 105

Answers

Answer:

36

Step-by-step explanation:

devide 105 by 3 then add one 34+35+36=105

Answer:

It's 37 because the three are 33, 35, and 37. 37 is the largest of all of them.

Step-by-step explanation:

105/3 = 35, therefore the middle number is 35, and the 3 numbers are 33, 35, and 37.

Other Questions
Please help, Ill mark you as brainliest!!!!! 3. What is the perimeter of the composite figure below? Round your answer to the nearest whole number.do it step by step In 1619 a Dutch trader exchanged his cargo of African for food at which of the following English settlements marking brainiest just because.... explain a math problem to me or sum lol Testbank Multiple Choice Question 81 At the beginning of 2020, Sunland Company issued 8% bonds with a face value of $5700000. These bonds mature in the five years, and interest is paid semiannually on June 30 and December 31. The bonds were sold for $5259870 to yield 10%. Sunland uses a calendar-year reporting period. Using the effective-interest method of amortization, what amount of interest expense should be reported for 2020 Omg guys I need help with this question I've failed the test like 4 time because of this question and I give up. Can someone please help me with this? A line that includes the point (-4, 9) has a slope of 1/2. What is its equation in point-slopeform?Use the specified point in your equation. Write your answer using integers, proper fractions,and improper fractions. Simplify all fractions. De qu manera las llamadas conchas evitan la reflexin del sonido en las salas de conciertos A piece of machinery depreciates 6000 the first year 5500 the second year and 5000 the third year. If the rate of depreciation is constant what is the amount of depreciation of the piece of the machinery in the sixth year? Which of the following is NOT a big difference between command and market economies? A. Opportunities for private citizens to own property B. Government control of business C. Opportunities for citizens to start their own business D. A system for exchanging currency in trade Match the function to the part of the cell. 1.lysosomeA.serves as a temporary storage area for nutrients and waste materials 2.vacuole B.breaks down waste materials 3.chloroplast C.converts energy from the sun to food energy The body temperatures of ectotherms, like lizards and turtles, can fluctuate with the environment. How do ectotherms maintain homeostasis? How can we tell other to not vape, explain using 5 sentences. i need help can you explain how to do it If x and y vary inversely and x = 1 when y = 11, find x when y = 5.5. Who is the narrator of this story? Tap your answer. 1) Gary makes $15.00 per hour for a five-dayforty-hour work week. Also, he makes double-time for holidays. This week, he works threeregular days and two holidays. What will be hispaycheck for this week?A) $$40B) $850C) $860D) $870E) $880 the georgetown basketball team scored the winning basket in the last second of the game! The 11 basketball players from the Georgetown team ran around the court giving each other high fives. If each player have each teammate a high five, how many high fives would be given in all? Find the perimeter of the following shapes 3.6 cm3 cm7.2 cm Write a thesis statement thatexpresses the topic and your viewpoint on how the campaign effectively promotes the influenza vaccination to a range of audiences.