John has 6 pancils, 3 blue pens, 5 black pens, and 2 red pens in a cup on his desk Without looking, John pulls a writing utensil out of the cup. Enter the probability that John pulls out a pencil.​

Answers

Answer 1

Answer:

john has a 6 out of 10 chance of picking a pencil

Answer 2

Answer:

P=37.5%

Step-by-step explanation:

Frequentist Probability

The probability of an outcome is defined as the frequency of the number of times the outcome occurs relative to the number of times that it could have occurred.

The equation to calculate the probability is:

[tex]\displaystyle P=\frac{f}{n}[/tex]

Where f is the number of favorable cases and n is the total cases.

John has in a cup of his desk:

6 pencils

3 blue+5 black+2 red pens=10 pens

Picking one of the utensils from the cup can be done in 16 different ways. That is the total number of cases n=16

The outcome of taking a pencil can be done in 6 ways. That is the number of favorable cases. f=6.

The probability is:

[tex]\displaystyle P=\frac{6}{16}[/tex]

Simplifying:

[tex]\displaystyle P=\frac{3}{8}[/tex]

Or expressed as a percentage:

P=3/8*100%

P=37.5%


Related Questions

The graph below is the graph of a function.


A True
B. False

Answers

Answer:False

Step-by-step explanation:

Failed vertical line test

help will do brainliest plz asap!!!
The 250m between Sam's house and the tennis court corresponds to 5 cm on a town map. What is the actual distance between Sam's school and the library if they are 8.4 cm apart on the same map?

Answers

Answer:

420m

Step-by-step explanation:

250m = 5cm

50m = 1cm

? = 8.4cm

50 x 8.4=

420m = 8.4cm

Step-by-step explanation:

firstly we need to find the scale factor

firstly we know that 250m=25000cm

25000/5=5000

so 1:5000 is scale factor.

Now let us find the distance between Sam's school and the library

if they are 8.4 cm apart on map it means that in actual distance they are

(8.4)*5000=42000 cm in reality

1. Write an algebraic expression for the sum of three coins and c coins.
A. C+3
B. C/3
C. 3c
D. C-3

2. Use mental math to solve the equation.

Z/-12 = -5

A. 7
B. -60
C. -17
D. 60

3.Estimate the solution of the equation x-8.1= 5.3 to the nearest whole number.

A. About 13
B. About 14
C. About 4
D. About 3

4. Solve the equation

14 = t-44

A. -30
B. -58
C. 30
D. 58

-3 = j + 50

A. 80
B. 20
C. -1500
D. -80

2.8x = -9.24

A. 12.04
B. -0.3030
C. -3.3
D. -12.04

5.8 = z/2.2

A. 127.6
B. 0.37
C. 3.7
D. 12.76

Answers

Answer:

1 Is A

2 is B

3 is A

4a is D

4b is -53 but that's not an answer choice

4c is C

4d is D

2. During typhoon Ambo, PAGASA tracks the amount of accumulating rainfall. For
the first three hours of typhoon, the rain fell at a constant rate of 25mm per
hour.
The typhoon slows down for an hour and started again at a constant rate of 20 mm
per hour for the next two hours. Write a piecewise function that models the amount
of rainfall as function of time.​

Answers

Answer:

The answer is below

Step-by-step explanation:

Let t represent the time in hour and A(t) represent the amount of accumulating rainfall at time t.

In the first three hours the rain fell at a constant rate of 25mm per

hour, hence:

A(t) = 25t     0 ≤ t ≤ 3

The rain then slows down and remains constant at 75 mm [i.e. 25(3)] for an hour.

The rain increases at a rate of 20t from 4 ≤ t ≤ 6. Hence the piecewise equation is given as:

[tex]A(t)=\left \{ {{25t\ \ \ \ \ \ \ \ \ \ for\ 0\leq\ t\ \leq\ 3} \atop {75\ \ \ \ \ \ \ \ \ \ for\ 0\leq\ t\ \leq\ 6 \atop {75+20(t-4)\ \ for\ 4\ \leq\ t\ \leq\ 6}} } \right. \\\\\left[/tex]

How do you do this question?

Answers

Answer:

Diverges

Step-by-step explanation:

The order of the numerator (2) is greater than the order of the denominator (1).  So the sequence will diverge as n approaches infinity.

QUESTION 4 of 10: You estimate that your new business's revenue will grow at a compounded rate of 30% each month for the first 6
months. If your third month's revenue is estimated at $5,000, what is your second month's revenue? (Round to the nearest dollar.)
a) $2,945
b) $3,846
ОООО
c) $4,012
d) $4,333

Answers

Answer:b) $3,846

Step-by-step explanation:

If your third month's revenue is estimated at $5,000, then $3846.15 is  second month's revenue.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given that  business's revenue will grow at a compounded rate of 30% each month for the first 6 months.

Third month's revenue is estimated at $5,000.

We need to find the second month's revenue.

Let us assume the revenue of second month = x

Compounded rate = 30%

x + 30% of x = 5000

x  + 0.3x = 5000

1.3x = 5000

Divide both sides by 1.3

x = 3846.15

Hence, $3846.15 is  second month's revenue.

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Can anyone answer these questions?

Answers

Answer:

g^2=49

7^2=49

g=7

hope it is helpful to you

PLEASE ANSWER ASAP Michael read 14 books in 26 months. At the same rate, about how many books can he read in 48 months?

Answers

Answer:

Well, lets break this down.

If you try to add 26 + 26 it would be 52, which is above 48.

So, we have to find how many books he can read in one month.

All we have to do, is divide!

14 = dividend

26 = divisor

Step 1:

Start by setting it up with the divisor 26 on the left side and the dividend 14 on the right side like this:

26⟌14 Then do the rest, ill wait.

once you have a answer, that is how much he reads a month.

now multiply by 48.

Emma is moving and must rent a truck. In addition to an initial fee, the rental company charges a fee of $2.50 per mile driven. If Emma were to drive 2 miles, the total cost would be $25. Write an equation for C,C, in terms of m,m, representing the total cost of renting the truck if Emma were to drive mm miles.


PLEASE HELP MEEEEEE!!!!

Answers

The total cost equation of renting the truck if Emma were to drive mm miles will be

C=2.5m+20

What is equation?Equation: A declaration that two expressions with variables or integers are equal. In essence, equations are questions, and attempts to systematically identify the solutions to these questions have been the driving forces behind the creation of mathematics. Simple algebraic equations with merely addition or multiplication to differential equations, exponential equations with exponential expressions, and integral equations are examples of different types of equations.

Let,

C=total cost

m=number of miles

the cost function is in the form of

C=am+b

the rental company charges a fee of $2.5 per mile so a=2.5

C=2.5m+b.....................(1)

if Emma were to drive m=2 miles, the total cost would be C=25

25=2.5\c*2+b

25=5+b

25-5=b

20=b

b=20..................put it back in equation 1

C=2.5m+b

Therefore, The total cost equation of renting the truck if Emma were to drive mm miles will be C=2.5m+20

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Answer:

C=2.5+20

Step-by-step explanation:

got right on delta

In(x - 2) – In(x + 2)

Answers

Answer:

i think it is in(x-2/2+2) the + on the bottom and the - on top as a fraction:) hope it helps

Step-by-step explanation:

Help! Now help! ASAP!I’ll make you brainly now please

Answers

Answer:

Day 2

Step-by-step explanation:

On Day 1, the temperature changed by 24.8 degress fahrenheit. On Day 2, the temperature changed by 32.94 fahrenheit which is more then Day 1.

Answer:

day two

Step-by-step explanation:

-11.31 + 13.49= 2.18

-7.69+ 25.25= 17.56

so day two because there's more distance in temp.

Two ratios that are equivalent to 2:12

Answers

One equivalent ratio is 1:6

To get this ratio, you divide both parts of 2:12 by 2

2/2 = 1

12/2 = 6

So that's why 2:12 is equivalent to 1:6

From here we could multiply both parts by say 3

1*3 = 3

6*3 = 18

Meaning that 1:6 and 2:12 are equivalent to 3:18

==============================================

Two possible answers are 1:6 and 3:18

There are infinitely possible answers

Point-Slope form is used when your are NOT given which of the following. You need all 3 or slope or y-intercept or a point.

Answers

Answer:

y-intercept

Step-by-step explanation:

you only need the slope and points for point-slope form

What is the theoretical probability of selecting a
king from a standard deck of 52 playing cards?
1/13
1/4
4/13
4

Answers

1/13

There are 4 kings per 52 playing cards, with a ratio of
4/52
Simply both sides by 4
1/13
Good luck cheaters

Answer:

The first part is: 1/13

The second part is: 9/20

Step-by-step explanation:

Solve using substitution y=3x+2, y=7x-6

Answers

Answer:

x=2, y=8 or (2, 8)

Step-by-step explanation:

y=3x+2

y=7x-6

substitute y=7x-6 into y=3x+2

7x-6=3x+2

4x=8

x=2

then plug 2 into either one

y=7(2)-6

y=8

Check answers

8=3(2) + 2  | correct

8 =7(2)-6 | correct

The answers are. Y=-0.6 , Y= 6/7

Andrew made $625 mowing lawns. He worked for 5 consecutive days and earned the same amount of money each day. How much money did Andrew earn per day?

Answers

Answer:

625 / 5 = 125 per day

Step-by-step explanation:

If this helped can I get brainliest I need to rank up.

(8,10),(-7,14)
The slope of the line

Answers

Answer:

-4/15

Step-by-step explanation:

I used my graphing calculator.

It is -4/15,
because I graphed it out.

Solve 4 • (−6). (1 point)

Answers

Answer:

answer is -24

Answer:

-24

Step-by-step explanation:

if my calculator is right haha

Suppose that a computer chip company has just shipped computer chips to a computer company.​ Unfortunately, of the chips are defective. ​(a) Compute the probability that two randomly selected chips are defective using conditional probability. ​(b) The probability that the first randomly selected chip is defective is . Compute the probability that two randomly selected chips are defective under the assumption of independent events. ​(a) The probability is nothing. ​(Round to eight decimal places as​ needed.)

Answers

Answer:

(a) 0.0000245

(b) 0.000025

Step-by-step explanation:

The complete question is:

Suppose that a computer chip company has just shipped 10,000 computer chips to a computer company. Unfortunately, 50 of the chips are defective. (a) Compute the probability that two randomly selected chips are defective using conditional probability. (b) There are 50 defective chips out of 10,000 shipped. The probability that the first chip randomly selected is defective is  50 /10,000  = 0.005.  Compute the probability that two randomly selected chips are defective under the assumption of independent events.

Solution:

(a)

In this case we need to compute the conditional probability of selecting two defective chips, i.e. the selection of the second defective chip is dependent on the first defective chip.

The probability of selecting the first defective chip is:

[tex]P(1D)=\frac{50}{10000}=0.005[/tex]

Now there are 9999 chips left and 49 defective chips among them.

The probability of selecting the second defective chip is:

[tex]P(2D)=\frac{49}{9999}=0.0049[/tex]

Compute the probability that two randomly selected chips are defective using conditional probability as follows:

P (Two defective chips) [tex]=P(1D)\times P(2D)=0.005\times 0.0049=0.0000245[/tex]

Thus, the answer is 0.0000245.

(b)

Compute the probability that two randomly selected chips are defective under the assumption of independent events as follows:

The above statement implies that the selection was done with replacement.

The probability is:

P (Two defective chips) [tex]=P(1D)\times P(2D)[/tex]

                                      [tex]=\frac{50}{10000}\times \frac{50}{10000}\\\\=0.005\times 0.005\\\\=0.000025[/tex]

Thus, the probability that two randomly selected chips are defective under the assumption of independent events is 0.000025.

hhhh5hhhhhhhhhhhhhhhhhhh

Answers

Answer:

Answer

Ammmm did u just gave free points

help im stuck pls -- Refer to the table above. Determine the percent of all voters that did not vote Republican or Democrat but voted "other" instead. Round your answer to the nearest tenth of a percent.

Answers

Answer:

9.9%

Step-by-step explanation:

Well, you would just divide the "other" category and the "total" category and then move the decimal over 2 spaces, because you need to multiply by 100 to turn your answer into a percent, so:

[tex]\frac{222}{2222} =0.09999...\\[/tex]

Then once you multiply by 100, or move the decimal to the left 2 spaces, it becomes:

9.9%, which could be rounded to 10% or 9%.

Represent in Interval notation

Answers

Answer:  [tex][5, \infty)[/tex]

On a keyboard, you would write [5, infinity)

The square bracket means "include this value" and a curved parenthesis means "exclude this value". We cannot include infinity as it is not a number, so we always use parenthesis with either infinity.

[tex]y \ge 5[/tex] is the same as [tex]5 \le y[/tex] which is also the same as [tex]5 \le y < \infty[/tex] which may help lead to set up the interval notation answer.

find the equation of the linear function represented by the table below in slope-intercept form. picture of table is below

Answers

Answer:

[tex] y = 3x + 2 [/tex]

Step-by-step explanation:

The equation of a linear function in slope-intercept form is: y = mx + b, where, m = slope, and b = y-intercept.

Find slope (m) of the linear function by using any two points, say (3, 11) and (7, 23):

[tex] m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{23 - 11}{7 - 3} = \frac{12}{4} = 3 [/tex]

To find the y-intercept (b), substitute the value of the corrdinate pair of any of the points represented on the table, and the value of the slope (m) into [tex] y = mx + b [/tex].

Substituting, x = -1, y = -1, m = 3.

[tex] y = mx + b [/tex]

[tex] -1 = 3(-1) + b [/tex]

[tex] -1 = -3 + b [/tex]

Add 3 to both sides

[tex] -1 + 3 = b [/tex]

[tex] 2 = b [/tex]

[tex] b = 2 [/tex]

Substitute m = 3, and b = 2 into the equation of the linear function in slope-intercept form:

[tex] y = mx + b [/tex]

[tex] y = 3x + 2 [/tex]

11. What is the value of y?
1420
105°
140°
124)
88°
you

Answers

Answer:

59 degrees (just taking a shot)

Step-by-step explanation:

A six sided polygon should have a total degree total of 720 degrees. 105+142+140+124+88+x=720. When you find x, it should equal 121 degrees. Since x and y are both on a straight line, that line has to be 180 degrees. These are supplementary angles. 180-121 should equal 59.

How many different 2-scoop combinations can you make if you are choosing among 4 different flavors?

Answers

Answer:

8

Step-by-step explanation:

4x2

Work your brain this evening y'all!! I had $3.00. My Mom gave me $10.00. My Dad Gave me $30.00. My Aunt & Uncle gave me $100.00. I had another $7.00. How much did I have?​

Answers

Answer: $150.00

Step-by-step explanation:

3+10=13

13+30=43

43+7=50

100+50=150

Answer:

Did you have 10 dollars??

Which expression is equivalent to 2(3x-8)?​

Answers

Answer:

6x-16

Step-by-step explanation:

2(3x-8)

distribute the 2

2 x 3x = 6x

2 x -8 = -16

A boy has 11 coins in dimes and quarters. Their value is $1.70. How many of each does he have?

Which of the following equations could be used to solve the problem?

options:
x + (11 - x) = 1.70
25x + 10(11 - x) = 1.70
0.10x + 0.25(11 - x) = 1.70

Answers

6 quarters, 2 dimes
I think the equation would be C

Represent the situation below as an integer
Mt. Whitney in California is 14,494 feet above sea level

Answers

Answer:

-14,494 feet

Step-by-step explanation:

14,494 is the answer for that

Determine the solution set of each equation​

Answers

Answer:

to find the solution set from the replacement set, plug, in each value from the replacement set and

evaluate both side of the equation.

Step-by-step explanation:

if the two side are equal , the equation is true and thus the value is a solution

in your opinion if the answer is correct then mark me as brain list and it may help you also and please follow back me

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