A jar contains nine black buttons and four brown buttons. If nine buttons are picked

at random, what is the probability that all of them are black?

Answers

Answer 1

Answer:

9/13

Step-by-step explanation:

Total = 9 + 4

= 13

Probability: 9/13


Related Questions

hey, can you answer this for me?
9-3x=54?

Answers

Answer:

[tex] \Large{\boxed{\sf x = -15}} [/tex]

[tex] \\ [/tex]

Explanation:

Given equation:

[tex] \sf 9 - 3x = 54 [/tex]

[tex] \\ [/tex]

Subtract 9 from both sides:

[tex] \sf 9 - 3x - 9 = 54 - 9 \\ \\ \sf -3x = 45 [/tex]

[tex] \\ [/tex]

Divide each side by -3 :

[tex] \sf \dfrac{-3x}{-3} = \dfrac{45}{-3} \\ \\ \\ \boxed{\boxed{\sf x = -15}} [/tex]

[tex] \\ \\ [/tex]

▪️Learn more about equations here:

↣https://brainly.com/question/19225782


Directions: Find the error.
Hugo says that if you interchange any coordinate
in quadrant IV, the new coordinates would still be
in quadrant IV. His friend Melanie disagrees. Who is
correct? Give two examples and explain.

Answers

Melanie is correct. (5,-7) if you interchange it becomes (-7,5) which will be in Quadrant I. (9,-2) becomes (-2,9) same logic.

Charlie had $938 he wants to buy gifts for his 15 family members he wants to spend the same amount of money (in dollars) for each person with the remaining money he buys a pen worth $3 how much money will he have left over after his purchases

Answers

Answer: $5

Step-by-step explanation:

938-3 = 935

935/ 15 = $62 on each person with a balance of $5

IMAGE BELOW I WILL GIVE BRAINLIEST

Answers

Answer: C: -4, -6 B:-14, -6 A:-14, -18

Step-by-step explanation: Multiply all of your points by 2

what are the domain and range of the function in the graph? round to the nearest tenth

Answers

Answer:

can you send a pic of the graph so we can give you an answer?

When an article is sold at 6% profit and 9% profit then the difference in sp is Rs 9 find CP and both SP of the article​.

Answers

Step-by-step explanation:

the present price of a motorcycle is Rs 2,25,000.if it's price is depreciated per year by 8% after how many years will the price of the motorcycle be rs 1,75,204.80?

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP

Answers

Answer: 24 students have less than 20 pets

Step-by-step explanation:

Find the LCM by first finding the prime factors.
3, 4, 8, 12

Answers

Answer:

12

Step-by-step explanation:

Grayson biked 45 miles in 3 hours Maya biked 26 miles in 2 hours. if they both kept a constant speed, how much faster did Grayson bike than Maya?


PLEASE HELP ASAP

Answers

The speeds of both Grayson and Maya can be found using the equation:

distance/time

So 45/3

and

26/2

Grayson was going 15mph while Maya was going 13mph

So Grayson was going 2mph faster than Maya

Write an equation for a line that passes through (1,-4) and (3,-5)

Answers

Answer:

y = -3/4x - 1/2

Step-by-step explanation:

Given:

Point 1: (1, -4)

Point 2: (3, -5)

Find:

The equation for the line that passes through Point 1 & Point 2

Solution:

y = mx + b

Will be the equation to arrive to at the very end, but we need m & b, the slope and the y-intercept

m = ( y2 - y1 ) / ( x2 - x1 ) = ( -5 - (-4) ) / ( 3 - 1 ) = -1 / 2

∴ m = - 1/2

Using either P1 or P2, plug in one of their respective x- and y-values into:

y = -1/2 x + b

I'll do (3, -5):

-5 = -1/2 ( 3 ) + b

-2 = -3/2 + b

-4 = -3 + 2b

-1 = 2b

∴ b = -1/2

y = -3/4x - 1/2 is the equation of the line that passes thru both points (-5, 4) and (3, -2)

Is the question below a statistical question?
What is the difference in rainfall between this year and last
year?

Answers

Answer:

No because there can only be one answer.

Step-by-step explanation:

Statistical questions have to have more than one answer in order for it to be statistical.

x= -5y + 36
5x + 5y = 0

The substitution method. Also please help me I’m so confused

Answers

Answer:

x = -9
y = 9

Step-by-step explanation:

If we know that x  =  -5y + 36
The second line says that
5x + 5y = 0
We can substiute the value of x from the first line into the second line.

So it becomes
5 ( -5y+36) + 5y = 0
Distribute the 5 over the parentheses
-25y + 180 +5y = 0
Then we can add things that are alike; so that means we can add the y values
-20y + 180 = 0
Then add 20y to both sides of the equation
180 = 20y
Then you divide by 20.
You get 9 = y!
Now that you have the value of y, you can put it back into the intial question.
5x+5y = 0
5x + 5(9) = 0
5x + 45 = 0
5x = -45
x = -9

Answer:

x=-9 y=9

Step-by-step explanation:

Substitute x:

5(-5y+36)+5y=0

Use Distributive property

-25y+180+5y=0

Add Like terms

-20y+180=0

Subtract 180 from both sides

-20y=-180

divide -20 from both sides

y=9

Solve for x by substituting the value of y into the equation x= -5y + 36

to get x=-9

The probability of getting a soda at the movie theater is 70%. What is the probability that the next three guests in the movie theater will get a soda

Answers

The probability that the next three guests in the movie theater will get a soda, when the probability of getting a soda at the movie theater is 70% is 0.343 or 34.3%.

What is probability?

Probability of an event is the ratio of number of favorable outcome to the total number of outcome of that event.

The probability of getting a soda at the movie theater is 70%.

[tex]P=70\%\\P=\dfrac{70}{100}\\P=0.7[/tex]

By the chain rule, the probability of getting the soda to the next 3 guest is equal to the cube of the probability of getting a soda at the movie theater.

Thus, the probability that the next three guests in the movie theater will get a soda is,

[tex]P^3=0.7^3\\P^3=0.343[/tex]

Thus,the probability that the next three guests in the movie theater will get a soda, when the probability of getting a soda at the movie theater is 70% is 0.343 or 34.3%.

Learn more about the probability here;

https://brainly.com/question/24756209

#SPJ1

1 . what’s -3 p + 6 p = ?


Hurry please!!!

Answers

Answer: 3p

Step-by-step explanation: The reason is because -3 + 6 = 3, therefore -3p + 6p = 3p. I hope this helped! If I did anything wrong then please let me know! :)

given:

[tex] - 3p + 6p[/tex]

solution:

first you'll have to combine light terms, both are light terms so,

[tex] - 3p + 6p[/tex]

[tex] =3p[/tex]

Russell wants to ride 2 miles on his bike. each lap around his block is 1/10 mile. which model show how many laps he should ride?

Answers

Answer:

20 miles

Step-by-step explanation:

each lap is 1/10 mile, then we have to do 2x10 =20

pls mark as brainliest hope this helps

what is the answer to this expression -2 x (10 + (-5) )

Answers

Answer: The answer to this expression is -10x

Step-by-step explanation:

We distribute -2x t the equation inside of the parenthaseis

[tex]-2 x (10 + (-5))[/tex]

[tex]-2x*10=-20x[/tex]

[tex]-2x*-5=10x[/tex]

[tex]-20x +10x=-10x[/tex]

A square room has measures of length and height am and bm respectively. write the formula to calculate the area of its four walls​

Answers

Answer:

area of the four walls

= a^2 x 4

if your catering people and its $80 for 6-8 people how much would it be to cater 128 people

Answers

Well if it’s 8 people that means that it’s 10 dollars per person which would make the total for 128 people $1280. But if it was 6 people it would be about 13 dollars per person. Which would make the total $1,664

Answer:

Your answer(s) is $1,706.67, $1,462.86, or $1,280

Step-by-step explanation:

This really varies based on whether you take $80 as equal to 6 people, 7 people, or 8 people.

I'll list all three explanations and you can choose one.

6 people: 1,706.67 (rounded to nearest cent)

128 ÷ 6 = 21.33333333

21.33333333 × 80 = 1,706.67

7 people: 1,462.86 (rounded to nearest cent)

128 ÷ 7 = 18.28571428571429

18.28571428571429 × 80 = 1,462.86

8 people:

128 ÷ 8 = 16

16 × 80 = 1,280

Last year at a certain high school, there were 84 boys on the honor roll and 50 girls
on the honor roll. This year, the number of boys on the honor roll decreased by 25%
and the number of girls on the honor roll decreased by 16%. By what percentage did
the total number of students on the honor roll decrease? Round your answer to the
nearest tenth (if necessary).

Answers

Answer:

Step-by-step explanation:

Boys Girls

84 50

%decrease %decrease

-25% -16%

84=100% 50=100%

75% 84%

75/100×84 84/100×50

=63 =42

84+50=134

63+42=105

134-105=29

134=100%

29

29/134×100

21.6%

help me please need help missing lengths​

Answers

Step-by-step explanation:

please mark me brilliant

Step-by-step explanation:

5. θ = 60°

→ To find the value of y ,

Cos θ = b/h

putting the values in terms of cos

Cos 60° = y/16

1/2 = y/16

16/2 = y

y = 8 unit

→ To find the value of x ,

Sinθ = P/h

putting the values in terms of sin

Sin60° = x/16

√3/2 = x/16

16×√3/2 = x

16×1.73/2 13.84 unit

6. θ = 30°

→ To find the value of y

tanθ = p/b

putting the values in terms of tan

tan 30° = 2/y

1/√3 = 2/y

2×√3 = y

3.46 unit = y

→ To find the value of x

Sin θ = p/h

putting the values in terms of sin

Sin 30° = 2/x

1/2 = 2/x

4 unit = x

I have a deadline for this soon please help (edmentum)

Answers

Hi i will give you explanation and examples, if I deserve a brilliant give me thank you :)

f(x)+g(x) Add the two functions g and f
(3x+2)+(4x)
f(x)+g(x)=7x+2

f(g(x)) Put the g function into f
f(4x)
f(4x)=3(4x)+2
12x+2

You could combine functions when you need to find the value of something for two equations. Like finding the total value of tickets sold for adult (f(x)) tickets and children (g(x)) tickets.

A grocery store sells long grain rice for 2.49 per pound. Write an expression for the cost of y pounds of long grain rice.

I dont want to waste time thinking about it

Answers

Answer:

Step-by-step explanation:

Cost = 2.49 * y

You really should spend the time. Math is used everywhere.

what is w + 4 1/4 = 13 19/20

Answers

Answer:

w = 9 7/10

Step-by-step explanation:

w + 4 1/4 = 13 19/20

Subtract 4 1/4 from each side

w = 13 19/20 - 4 1/4

Get a common denominator of 20

w = 13 19/ 20  - 4 1/4*5/5

w = 13 19/ 20  - 4 5/20

w = 9 14/20

We can simplify

w = 9 7/10

Rewrite the fractions to have the same denominator:

1/4 can be rewritten as 5/20


now you have w + 4 5/20 = 13 19/20

Solve for w by subtracting 4 5/20 from both sides:

W = 9 14/20 which can be rewritten as 9 7/10


answer: 9 7/10

In a 30 - 60 - 90° triangle x= 7.5 feet
What is the length of the hypotenuse?

Answers

Answer: 15ft or 7(2)

Step-by-step explanation:

The opposite side or the side standing up is the "x" side the hypotenuse is double the size of the opposite in a 30-60-90.

Emily walks every day, and she keeps a record of the number of miles she walks each day. The histogram and five-number summary below were created from the recorded miles for a random sample of 25 of the days Emily walked.

Answers

Given the method given to calculate an outlier, the method does not identify 7.5 miles as an outlier.

Is 7.5 miles an outlier?

An outlier is either very much larger or smaller than the rest of the data in the dataset.  In this dataset: 1, 2, 1000. 1000 is an outlier.

Outlier = 1.5 x interquartile range

Interquartile range = q3 - q1

1.5 x (3.8 - 2.6) = 1.8

To learn more about outliers, please check: https://brainly.com/question/27197311

Find the 66th term in the following
arithmetic sequence :
-92, -85, -78, -71, .

Answers

Answer

363

Step-by-step explanation

T1= a= -92

T2= -85

common difference d = T2-T1

d = -85 -(-92)

= -85 +92

= 7

Tn = a + (n-1)d

T66 = -92 + (66-1)7

= -92 + (65)7

= -92 + 455

= 363

Sasha’s daily tips this work week were $43, $32, $65, $88, $50, and $72. Is Sasha correct in thinking that the mean accurately represents how much money she makes in daily tips? Yes, Sasha is correct. The mean amount she makes is $58. 33 in a day. Yes, Sasha is correct. The mean amount she makes is $65. 33 in a day. No, Sasha is not correct. The median amount she makes is $53. 00 in a day. No, Sasha is not correct. The median amount she makes is $60. 00 in a day.

Answers

Yes. Sasha is correct. She makes $58.33 per day

Answer: Yes Sasha is correct she makes $58.33 a day

Step-by-step explanation: First add all the tips

[43 + 32 + 65 + 88 +50 + 72 =350]

Then divide by how many tips there are

[350 ÷ 6]

therefore your answer is $58.33

Michelle has private health insurance that cost $435 a month. Her new employer will provide the same health insurance at no cost to her. What is the health insurance worth as a benefit of employment?

Answers

The health insurance worth as a benefit for Michelle is = $870.

Calculation of total health insurance benefits

The private health insurance cost for Michelle = $435

The new employer will provide the same health insurance = $435

Therefore, the health insurance worth as a benefit for Michelle is = $435 + $435 = $870

Learn more about insurance here:

https://brainly.com/question/25855858

#SPJ1

I need help pls!!! I would appreciate it

Answers

Answer:

(-1,-4) ---> 77

Step-by-step explanation:

f I read 245 pages of The Lightning Thief, what percent of the book have I read? (There are 377 pages total, Round to the nearest percent

Answers

Answer:

65%

Step-by-step explanation:

set a porportion

245 =x

377  100

245x100= 24500/377  = 64.9 rounded = 65%

Other Questions
[tex]\frac{1}{x^2-5x}=\frac{x+7}{x}-1[/tex] PLEASE HELP ASAP which of these functions could be compromised in theburn patient.The functions are1. Protection2. Regulating body temperature3. Water balance4. sensory reception Two spheres have volumes of 8 cm3 and 64 cm3. if the surface area of the smaller sphere is 16 cm2, what is the surface area of the larger sphere? 64 cm2 96 cm2 128 cm2 256 cm2 2/5 * -3/7 - 1/14 - 3/7 * 3/5 + 1/2Explan it pls ty (best gets brainliest) In the late 1800s, canning machinery made it easier to Please help me this is do today Pure water freezes at 0 C (32* F) and boils at 100 C (212' F), a large range for aliquid, and has an extremely high heat capacity. Why are these properties of waterimportant? Find BC. PLEASE HELP Can u help me solve this plsssss??? Name an important invention in the early years of personal computers{PCs} Which letter best represents the wavelength?ABCD HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP From 32 + 14i, subtract its complex conjugate. What is the difference? Factor 7x3 21x2 3x 9 by grouping. what is the resulting expression? (3 7x)(x2 3) (7x 3)(3 x2) (3 7x2)(x 3) (7x2 3)(3 x) Find the equation of the line that goes through the points (0, 4) and (10, 2).y = -1/5 x + 2y = -5x + 4y = -1/5 x + 4y = 1/5 x - 4 What is the value of (2/3)^-4 ? The question is in the picture btw Where is the main idea of an essay introduced to the reader? in the topic sentence in the source citation in the thesis statement in the research question The turn signal belongs to which subsystem of an automobile?(1 point) The coordinates of the point P:(2,2), Q:(6,2), R:(6,5), S:(2,5) represent the vertices of a rectangle. What is the perimeter, in units of rectangle PQRS?