Logan purchased 20 stamps at the post office for $8.40. What is the cost of one stamp?

Answers

Answer 1

Answer:

.42

Step-by-step explanation:

Answer 2

Step-by-step explanation:

Divide 8.40 by 20, use a calculator. Make sure to put $ in your answer.


Related Questions

One way of checking the effect of undercoverage, nonresponse, and other sources of error in a sample survey is to compare the sample with known facts about the population. About 12% of American adults identify themselves as black. Suppose we take an SRS of 1500 American adults and let X be the number of blacks in the sample. Use a Normal distribution to estimate the probability that the sample will contain between 165 and 195 blacks.

Answers

Solution :

Given :

p = 12% = 0.12

n = 15..

Mean is defined as the product of a sample size n and the probability p such that :

[tex]$\mu_X = np = 1500 \times 0.12$[/tex]

             = 180

Standard deviation may be defined as the square of a product of the sample size n, the probability p and the probability 1-p :

[tex]$\sigma_X = \sqrt{np(1-p)}$[/tex]

[tex]$\sigma_X = \sqrt{1500 \times 0.12 \times (1-0.12)}$[/tex]

     ≈  12.5857

The z-score is given by :

[tex]$z=\frac {x- \mu}{\sigma } $[/tex]

[tex]$z=\frac {165-180} {12.5857 }$[/tex]

 ≈  -1.19  

[tex]$z=\frac {x- \mu}{\sigma } $[/tex]

[tex]$z=\frac{195-180} {12.5857 }$[/tex]

 ≈  1.19  

Now determining the corresponding probability using table  :

P (165 ≤ X ≤ 195 ) = P (-1.19 ≤ Z ≤ 1.19 )

                            = 1-2 x P(Z < -1.19)

                            = 1-2 x 0.1170

                            = 1-0.2340

                            = 0.7660

                             = 76.60%

"76.06%" would be the probability that the sample will contain between 165 as well as 195 blacks.

Given values,

p = 12%

           = 0.12

n = 1500

The mean will be

→ [tex]\mu x = np[/tex]

By putting the values,

       [tex]= 1500\times 0.12[/tex]

       [tex]= 180[/tex]

The standard deviation will be:

→ [tex]\sigma x = \sqrt{np(1-p)}[/tex]

       [tex]= \sqrt{1500\times 0.12\times (1-0.12)}[/tex]

       [tex]= 12.5857[/tex]

The z-score will be:

→ [tex]z = \frac{x- \mu}{\sigma}[/tex]

     [tex]= \frac{165-180}{12.5857}[/tex]

     [tex]= -1.19[/tex]

and,

→ [tex]z = \frac{195-180}{12.5857}[/tex]

     [tex]= 1.19[/tex]

hence,

The probability will be:

→ [tex]P(165 \leq X \leq 195) = P(-1.19 \leq Z \leq 1.19)[/tex]

                                [tex]= 1-2\times P(Z < -1.19)[/tex]

                                [tex]= 1-2\times 0.1170[/tex]

                                [tex]= 1-0.2340[/tex]

                                [tex]= 0.7660[/tex]

                                [tex]= 76.60[/tex] (%)

Thus the answer above is right.  

Learn more about probability here:

https://brainly.com/question/13796006

The function, f(x), is plotted below.



Evaluate the limits, if they exist. If not, write DNE.

Limit as x approaches negative 1 minusf(x) =

Limit as x approaches 3 plusf(x) =

Limit as x approaches 1 f(x) =

Answers

Answer:

1

2

DNE

Step-by-step explanation:

Draw a plane intersecting a cube to get the cross section indicated. rectangle


OA
OB
OC
OD​

Answers

I think the answer is OA

Marcelo can select from 2 types of oranges and 3 types of peaches. If he randomly selects 1 orange and 1 peach, how many possible choices does he have? ___________ possible choices

Answers

Answer:

6 choices

Step-by-step explanation:

need answers 2 and 3

Answers

Answer:

2. 10^38, or 10 to the power of 38.
3. 10^15, or 10 to the power of 15.

Step-by-step explanation:

2. If you are multiplying two individual 10's with each having its own power, add the powers together to form an answer. DO NOT ADD THE 10'S TOGETHER!!! Since 10^32 is being multiplied by 10^6, you would write it as 10^38.

3. Because you have 10 cubed inside the bracket, with an exponent of 5 outside of the bracket, you multiply the brackets together. DO NOT MULTIPLY 10!!! So, 5 x 3 equals 15, You would get 10^15.

Select the correct an
Sally rents a life jacket for a one-time fee of $5. She then
rents a canoe for $15 per hour. Which expression
represents the total cost, in dollars, to rent the life jacket
and the canoe for h hours?
A. 5+15h
OB. 10h
C. 15+5h
OD. 20h

Answers

Answer: The answer for this question is "A": 5 + 15h

find the volume if the cylinder. round to the nearest tenth if nessesary.
A. 627.5m^3.
B. 843.4m^3.
C. 986.4^3.
D. 1017.9n^3​

Answers

The correct Answer is : B. 843.4m^3.

Please help please please

Answers

Answer:

1078m²

Step-by-step explanation:

Formulas:

Total Surface Area  = 2B + Ph

Area = 1/2bh

Solve:

19 × 17 = 323

19 + 19 + 17 + 17 = 72

h = 6m

B = 323m

P = 72m

Total Surface Area = 2(323m) + (72m × 6m) = 1078m²

hey guys i got one more- 8 mi.=_yd. Thanks!!!(PLEASE ANWER FAST!!)

Answers

Answer:

if mi stands for miles then 8 miles = 14080 yards

Step-by-step explanation:

8 x 1760

Answer:

14080

Step-by-step explanation:

8 * 1760 = 14080

I have a bucket which I use to fill a
paddling pool
I use 19 full buckets of cold water and 8
buckets of hot water, so the pool is full.
The capacity of the pool is 288 litres.
If I poured the water from one bucket into
some glasses, I could fill 32 glasses,
What is the capacity of each glass
in millilitres?​

Answers

Answer:

35

Step-by-step explanation:

gifbyukirvh8redio00te

(i will mark brainly)
Use the table to write a proportion.

Answers

Answer:

One proportion is 15 songs / 2.5 hours = 18 songs / h hours.

ok I'll try to answer

first the given 15/2.5=18/h

so the second hour is missing so we have to multiply cross then the result will be

15h=45

divide 15 for 15 and we got h

again divide 45 for 15

[h=3]

Jessa is playing a board game and rolls two dice. Let A = {the sum of the dice is even}, and let B = {the sum of the dice is divisible by 3}. List the outcomes in A ∩ B.

Answers

The Intersection of events A and B (A ∩ B) in this particular scenario has no outcomes, as there are no combinations that satisfy both the conditions of having an even sum and being divisible by 3.

The outcomes in the intersection of events A and B, we first need to identify the possible outcomes for each event.

Event A represents the sum of the dice being even. For a pair of dice, there are a total of 36 possible outcomes (6 sides on the first die multiplied by 6 sides on the second die). Out of these outcomes, half will result in an even sum. This is because if one die shows an odd number, the other die must show an even number to achieve an even sum. Therefore, Event A consists of 18 outcomes.

Event B represents the sum of the dice being divisible by 3. To determine the outcomes for Event B, we need to identify the combinations of numbers on the dice that add up to a multiple of 3. There are four such combinations: (1, 2), (2, 1), (2, 4), and (4, 2). These four combinations result in a sum that is divisible by 3. Hence, Event B consists of four outcome.

The outcomes in the intersection of A and B (A ∩ B), we need to identify the outcomes that satisfy both conditions, i.e., the outcomes that are both even and divisible by 3. From the information above, we know that Event A has 18 outcomes and Event B has four outcomes. However, none of the outcomes satisfy both conditions simultaneously. Therefore, the intersection of A and B (A ∩ B) has no outcomes.

It is important to maintain academic integrity by avoiding plagiarism. Plagiarism involves using someone else's work or ideas without proper attribution. To ensure originality, it is essential to express the information in your own words and provide accurate explanations based on the given data.

In conclusion, the intersection of events A and B (A ∩ B) in this particular scenario has no outcomes, as there are no combinations that satisfy both the conditions of having an even sum and being divisible by 3.

To know more about Intersection .

https://brainly.com/question/28950927

#SPJ8

take your time please.​

Answers

Step-by-step explanation:

6/5(4)=24/20

1/2(5)=5/10

3/9(7)=21/63

3/8(5)=15/40

4/3(9)=36/27

2/4(8)=16/32

9/6(2)=18/12

7/5(6)=42/30

4/7(3)=12/21

Bob mixed 5/8 cup of water and 1/8 cup of lemon juice in a cup. The rest of the mixture was lime juice. How much lime juice did Bob add if the cup was full?

Answers

Answer: thats a good question

Step-by-step explanation:

Answer: he will add 2/8 more so it can be full.

Step-by-step explanation: you divide 2/8 by 5/8 and you'll get 1/8.

please give me brainlest

Q: Find six rational numbers between 3 and 4 .​

Answers

Answer:

Six rational numbers between 3 and 4 are 3.1, 3.2, 3.3, 3.4, 3.5 and 3.6.

Answer:

six rational numbers between 3 and 4 are 227 , 237 , 247 , 257 , 267 , 277

find the circumference and the area of a circle with the diameter of 8 m.

Answers

Answer:

circumference = 8 x 3.14 = 25.12 m

area = 3.14(4²) = 50.24 m²

Step-by-step explanation:

Answer:

C= about 25.13

A= about 50.27

Step-by-step explanation:

The formula for circumference is 2* pi* r

The formula for area is pi *r^2

What is the solution set for 4x+ 9 <17?

A- x>2

B- x<2

C-x>4

D-x<4

Answers

Answer:

The awnser is d i think

Please Help! SCAMMERS WILL BE REPORTED! Use Cramer's Rule to solve the following system

-2x- 6y = -26
5x + 2y = 13

Answers

Answer:

x=1,y=4

Step-by-step explanation:

x=1,y=4

Sales volume last weekend for four samples, each consisting of five car dealerships, were as follows: Data Point 1 2 3 4 5 Sample 1 21 10 19 35 23 Sample 2 34 44 29 15 30 Sample 3 38 22 29 31 15 Sample 4 47 39 20 16 36 What is the mean of the distribution of sample means

Answers

Answer:

Mean of sample means = 22.12

Step-by-step explanation:

Data points     1     2     3     4     5        Sample mean

Sample 1         21    10   19    35   23         21.6

Sample 2        34   44   29   15   30         30.4

Sample 3        38   22   29   31   15          27

Sample 4         47   39    20  16   36         31.6

[tex]Mean of means = \frac{Sum of sample means}{No. of samples}[/tex]

                         [tex]=\frac{21.6 + 30.4 + 27 + 31.6 }{5} \\= 22.12[/tex]

Answer:

22.12

Step-by-step explanation:

Hope this helps

At a camp with 300 campers and 15 counselors, what is the camper-counselor ratio?​

Answers

Answer:

300:15 = 100:5 = 20:1

Answer = 20:1

In an August 2012 Gallup survey of 1,012 randomly selected U.S. adults (age 18 and over), 536 said that they were dissatisfied with the quality of education students receive in kindergarten through grade 12.

a. Test, at the 5% significance level, if this sample provides evidence that the proportion of Americans who are dissatisfied with education in kindergarten through grade 12 differs significantly from 50%.
b. Is the Test Significant? Why or Why not.

Answers

Answer:

Yes, result is significant ; PVALUE < α

Step-by-step explanation:

Given :

x = 536

n = sample size = 1012

Phat = x / n = 536 / 1012 = 0.5296 = 0.53

H0 : P0 = 0.5

H1 : P0 > 0.5

Test statistic :

(Phat - P0) ÷ sqrt[(P0(1 - P0)) / n]

1-P0 = 1 - 0.5 = 0.5

(0.53 - 0.5) ÷ sqrt[(0.5*0.5)/1012]

0.03 ÷ 0.0157173

= 1.9087

Pvalue :

Using the Pvalue from test statistic :

Pvalue = 0.02815

To test if result is significant :

α = 0.05

0.02815 < 0.05

Pvalue < α ; Hence, result is significant at α=0.05; Hence, we reject H0.

which of the following is the quotient of the rational expression shown below? x/3x-1 ÷ x-2/2x​

Answers

Step-by-step explanation:

[tex] \frac{x}{3x - 1} \div \frac{x - 2}{2x} = \\ = \frac{x}{3x - 1} \times \frac{2x}{x - 2} = \\ = \frac{2 {x}^{2} }{3 {x}^{2} - 7x + 2} [/tex]

how to graph an inequality y<1-2x

Answers

Answer:

Step-by-step explanation:

What probability statement would you add to ​P(blue) = 1 10 to make a complete probability model for the event choosing a foam ball at random from the​ box?

Answers

Answer:

The chances of landing on blue are 1 in 4, or one fourth. The chances of landing on red are 1 in 4, or one fourth. This problem asked us to find some probabilities involving a spinner.

What is the answer please help no links no links please help

Answers

180cm. The square is 6 x 6 = 36 and the triangles = 12 x 6 = 72 and then divide it by 2 = 36 multiply that by 5 and you get 180cm
the answer of the question is 180cm

what is the area of a circle​

Answers

The area of a circle with a radius of r is [tex]pi r^2[/tex]

Match the vocabulary to the proper definition.
1. a conclusion based on the results of evidence
2. a question that leads individuals towards a certain answer
the collection, organization, and analysis of numerical
3.
information
a sample in which every member of the population has an
4.
equal chance of being selected; unbiased sample
5. a sampling of a population used to make predictions

Answers

Answer:

I got an answer

Step-by-step explanation:

1 is inference

2 is biased question as individuals are lead towards an answer that aligns with what the one who made the question wants

3 is statistics

4 is random

5 is survey

A package contains 6 cups of cereal. Each serving is 1/4 cup of cereal. How many serving are there in all?

Answers

Answer:

1 and 2/4 I think

Step-by-step explanation:

Answer: 24

Step-by-step explanation: 4•(1/4)=1

4•6=24

The relative growth rate for a certain type of bacteria population is 78% per hour. A small culture has formed and in just 5 hours the count shows to be 34,820 bacteria in the culture. What is the initial number of bacteria in the culture? us this formula to solve it and show all work A(t) = Pe^(rt).

Answers

Step-by-step explanation:

A(t)=P(e^(rt))

Insert the values as follows:

The equation for "continual" growth (or decay) is A = Pe^(rt), where "A", is the ending amount, "P" is the beginning amount (principal, in the case of money), "r" is the growth or decay rate (expressed as a decimal), and "t" is the time (in whatever unit was used on the growth/decay rate).

34820=P(e^((.78)(5)))

34830=P(49.4024)

704.82335

Hope that helps :)

Find q. q/32=6 q=? Help

Answers

Answer:

q=0

Step-by-step explanation:

Hope this helped!!

the answer is 192

Step-by-step explanation:

q/32 = 6

q = 192

Other Questions
Depreciation is an example of cost incurred by a business in the past. Such non-cash expenses should not be considered for decision making from the perspective of finance, even if they would reduce the reported profits. O True O False Assuming normal distribution, what would be the proportion of observations falling within one standard deviation of the mean? 1.O 25% 2.O 32% 3.O 50% 4. O 68% 5.O 75% A population has mean 555 and standard deviation 40. Find the mean and standard deviation of sample means for samples of size 50. Find the probability that the mean of a sample of size 50 will be more than 570. 2. A prototype automotive tire has a design life of 38,500 miles with a standard deviation of 2,500 miles. Five such tires are manufactured and tested. On the assumption that the actual population mean is 38,500 miles and the actual population standard deviation is 2,500 miles, find the probability that the sample mean will be less than 35,000 miles. Assume that the distribution of lifetimes of such tires is normal. A normally distributed population has mean 1,200 and standard deviation 120. Find the probability that a single randomly selected element X of the population is between 1,100 and 1,300. Find the mean and standard deviation of X for samples of size 25. Find the probability that the mean of a sample of size 25 drawn from this population is between 1,100 and 1,300. 4. Suppose the mean weight of school children's book bags is 17.5 pounds, with standard deviation 2.2 pounds. Find the probability that the mean weight of a sample of 30 book bags will exceed 18 pounds. 5. The mean and standard deviation of the tax value of all vehicles registered in NCR are u-550,000 and o=80,000. Suppose random samples of size 100 are drawn from the population of vehicles. What are the mean ux and standard deviation ox of the sample mean X? 6. The IQs of 600 applicants of a certain college are approximately normally distributed with a mean of 115 and a standard deviation of 12. If the college requires an IQ of at least 95, how many of these students will be rejected on this basis regardless of their other qualifications? 7. The transmission on a model of a specific car has a warranty for 40,000 miles. It is known that the life of such a transmission has a normal distribution with a mean of 72,000 miles and a standard deviation of 12,000 miles. What percentage of the transmissions will fail before the end of the warranty period? What percentage of the transmission will be good for more than 100,000 miles? Two schools conduct a survey of their students to see if they would be interested in having free tutoring available after school. We are interested in seeing if the first school population has a lower proportion interested in tutoring compared to the second school population. You wish to test the following claim (H) at a significance level of a = 0.005. H:P1 = P2 H:P psychotherapists who employ psychoanalytic methods decribe a client's mental blocks as; what are some types of rich media ads, and what are theirgeneral advantages and disadvantages? if the position of a particle on the x-axis at time t is 5t2 , then the average velocity of the particle for 0 t 3 is Let A = [-1 -4 3 -1] To find the eigenvalues of A, you should reduce a system of equations with a coefficient matrix of (Use L to represent the unknown eigenvalues) Marvin's Mechanical Repair Shop started the year with totalassets of $60,000, total liabilities of $40,000, and retainedearnings of $18,000. During the year, the business recorded$100,000 in auto r A. Reagan's argues logically -Americans should try to preservepeace.B. Reagan argues logically -- thatpeace "should be maintainedindefinitely."C. Reagan's argument is based onopinion -- that peace should bepreserved.D. Reagan's argument is based onemotion - the emotion surrounding amother who has lost her son.37 Rewrite each of the following as a base-ten numeral. a. 3 106 +9.104 + 8 b. 5.104 + 6 . Soapbox is a local band that plays classic and contemporary rock. The band members charge $600 for a three-hour gig. They would like to play at least 30 gigs per year but need to determine the best way to promote themselves. The most they are willing to spend on promotion is $2,500. The possible promotion options are playing free gigs, making a demo CD, hiring an agent, handing out fliers, and creating a Web site. Each free gig costs them $250 for travel and equipment but generates about three paying gigs. A high-quality studio demo CD should help the band book 20 gigs but will cost $1,000. A demo CD made on home recording equipment will cost $400 but may result in only ten bookings. A good agent will get the band 17 gigs but will charge $1,500. The band can create a Web site for $450 and would expect to generate six gigs from this exposure. They also estimate that they may book one gig for every 500 fliers they hand out, which would cost $0.08 each. They don't want to play more than six free gigs or send out more than 2,500 fliers, and can only produce one high-quality demo CD, produce one home demo CD, hire one agent, and make one website. Develop and solve an integer optimization model to find the best promotion strategy to maximize their profit. Which are independent clauses? Check all that apply.1. They decided to take a long walk2. We were able to arrive on schedule3. He was unsure how to proceed What is ""Acceptance""? Who has the legal power to accept an offer? Can a terminated offer be accepted? Which of the following concerning the auditor's report on internal control over financial reporting correct? Multiple Choice The auditor needs to state management's assessment of internal control over please me with an essay on these three securities. VERYURGENT1. Ideanomics.com2. Amazon3. MGIC investment corporation what type of marriage pattern, exchange, and residence pattern are practiced by the masai? a company has a pension liability of $410,000,000 that it must pay in 26 in years. if it can earn an annual interest rate of 3.7 percent, how much must it deposit today to fund this liability?a. 130,545,018.79b. $140,677,021.20c. $153,729,577.72d. $64,278,729.02e. $159,417,572.09 In this chapter, we briefly discussed 3 methods (other than hiding the name, etc.) of inference control. . The query set size control: don't return an answer if the set size is too small; N-respondent, k% dominance rule: don't return an answer if = k% of the population/data; - Randomization: add a small amount of random noise to the data. I. (1 pt) What is the advantage of using "randomization" compared to using "query set size control" or "N-respondent, k% dominance rule"? II. (1 pt) What is the disadvantage of using "randomization" compared to using "query set size control" or "N-respondent, k% dominance rule"? III. (1 pt) Outline an attack on a system using "query set size control". That is, outline a way of getting some information (such as average) of a small set A. IV. (1 pt) Outline an attack on a system using "N-respondent, k% dominance rule". That is, outline a way of getting some information (such as average) of a set A(with size < N) that contributes the majority (>k%) of data (let's say, set B). V. (1 pt) Outline an attack on a system using "randomization". That is, outline a way of "recovering" the original data that does not include the random noise. Current Attempt in Progress The Vice President for Sales and Marketing at Waterways Corporation is planning for production needs to meet sales demand in the coming year. He is also trying to determine how the company's profits might be increased in the coming year. This problem asks you to use cost-volume-profit concepts to help Waterways understand contribution margins of some of its products and decide whether to mass-produce any of them. Waterways markets a simple water control and timer that it mass-produces. Last year, the company sold 755,000 units at an average selling price of $5.00 per unit. The variable costs were $2,265,000, and the fixed costs were $1,026,800. (51) Waterways is thinking of mass-producing one of its special-order sprinklers. To do so would increase variable costs for all sprinklers by an average of $0.70 per unit. The company also estimates that this change could increase the overall number of sprinklers sold by 10%, and the average sales price would increase $0.20 per unit. Waterways currently sells 496,000 sprinkler units at an average selling price of $28.80. The manufacturing costs are $8,039,000 variable and $2,100,879 fixed. Selling and administrative costs are $2,674,600 variable and $793,460 fixed. If Waterways begins mass-producing its special-order sprinklers, how would this affect the company? (Round ratio to 2 decimal places, eg, 5.25% and Net income to O decimal places, eg. 2,520.) Current New Effect Contribution margin ratio % % Decrease by Net income $ ta $ Increase by $ e Textbook and Media As discussed in the lesson, the development of project networks is simplified using Project software. Create a table with a list of five project management software programs available on the market today (Microsoft Project and ProjectLibre are two examples). List two benefits and two drawbacks for each program.