Phoebe is 3 years less than half her brother’s age. Phoebe is 13 years old. Her brother is b years old. Write an equation that could be used to find her brother’s age.
plzzzzzz help

Answers

Answer 1

Answer:

dont know dont care

Step-by-step explanation:

u should pay more attention to what you lesson/teacher is teaching you


Related Questions

A simple closed figure bound by line segments is called polygon.


True or False?​

Answers

Answer:

A. True

Step-by-step explanation:

I majored in Mathematics

HELP ME Which One Doesn’t Belong?

7.9x
7.9 (-10)
7.9 + x
-79

Answers

Answer:

7.9 + x because all the others are equal to.each other

7.9 + x because the 7.9 would have to have an x factor to be added to another x. the real equation would be 7.9 • x. • representing multiplication

1.An electronic prize wheel is programmed to land on "win” 25% of the time on weekdays and 10% of the
time on weekends, and consecutive plays produce winners independently. Suppose we observe a random
sample of 50 outcomes from this machine on a weekday and 100 outcomes from this machine on a
weekend. Which of the following descritts the shape, mean, and standard deviation of the sampling
distribution of the difference in the two sample proportions?
(a) Shape = approximately normal, mean = 0.15, standard deviation = 0.07
(b) Shape = approximately normal, mean = 0.15, standard deviation = 0.05
(c) Shape = approximately normal, mean = 0.35, standard deviation = 0.07
(d) Shape = skewed right, mean = 0.35, standard deviation = 0.05
(e) Shape = skewed right, mean 0.35, standard deviation = 0.0

Answers

Answer: D

Step-by-step explanation:

The shape, mean, and standard deviation of the sampling distribution of the difference in the two sample proportions is Shape = skewed right, mean = 0.35, standard deviation = 0.05.

What is the standard deviation?

In statistics, the standard deviation of a random variable, data is the square root of its variance.

An electronic prize wheel is programmed to land on "win” 25% of the time on weekdays and 10% of the time on weekends, and consecutive plays produce winners independently.

A random sample of 50 outcomes from this machine on a weekday and 100 outcomes from this machine on a weekend.

[tex]P_{1} = 25%\\ =0.25\\P_{2} = 0.10\\[/tex]

[tex]n_{1} = 50\\n_{2} =100[/tex]

Let x be a random variable for weekdays

[tex]x= N[0.25, 0.25\times(1-0.25)/50]\\x = N[0.25, 0.00375][/tex]

Let y be randomly variable for weekdays

[tex]Y= N[0.10, 0.10\times(1-0.10)/100]\\Y= N[0.10, 0.0009][/tex]

Thus, the shape, mean, and standard deviation of the sampling distribution of the difference in the two sample proportions is Shape = skewed right, mean = 0.35, standard deviation = 0.05.

Learn more about standard deviation;

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Which expressions are equivalent?
3x-7y and -7y+3x
3x-7y and 7y-3x
3x-7y and 3y-7x
3x-7y and -3y+7x

Answers

Answer:

first one

Step-by-step explanation:

Because the coefficient of x is 3 and coefficient of y is-7

Answer:

A

Step-by-step explanation:

Salaries for teachers in a particular elementary school district are normally distributed with a mean of $49,000 and a standard deviation of $4,500. We randomly survey ten teachers from that district. (Round your answers to the nearest dollar.)
(a) Find the 90th percentile for an individual teacher's salary.
$


(b) Find the 90th percentile for the average teacher's salary.

Answers

Answer:

they get a lot of moohlah

Step-by-step explanation:

Please help me. There are 25 students in Mrs. Benatar‘s class at the beginning of the school year, and the average number of siblings for each student is three. A new student with eight siblings join the class in November. What is the new class average for number of siblings? Round your answer to the nearest hundredth.

Answers

Answer: 3.19

Step-by-step explanation:

So to find the average I used a simple but pretty effective method

3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+3+8/26=3.1923

So the new average is 3.19

Multiply (6+3i)(3+i)

Answers

Correct answer is B.

If 10 is p percent of 21 , p is a number between

Answers

Answer: 47 and 48

Step-by-step explanation: 10/21 ≈0.476190476 and multiplied by a 100 to get a percentage is ≈ 47.6 which is in between 47 and 48. Hope this helps, and have a great day!

Answer: 47%

Step-by-step explanation:

half of 20 is 10 so half of 21 is 10.5

Cindy works on the weekends at the local coffee shop. Last Saturday she worked 7.5 hours and
on Sunday she worked 8 hours. She earns $9 per hour. How much did she earn last weekend?
F:97.00 G:89.50 H:139.50 J:109.00

Answers

Answer: H. 139.50

Step-by-step explanation:

Multiply 9 by 8 first and you get 72. Then multiply 9 by 7.5 and you get 67.5 then add 72 and 67.5 and you get 139.5 or 139.50

Turma:
Autor:
Frações e a Reta Numérica
Habilidade EF05MA03: Identificar e representar frações (menores e maiores que a unidade), associando-as ao resultado de uma divisão ou à ideia de parte de um todo, utilizando a reta numérica como recurso; Habilidade EF05MA04A: Identificar diferentes escritas nas representações fracionária e decimal com o apoio em representações gráficas, identificando as frações equivalentes.
08/02/21 - 6º ano do EFII - Matemática - Frações e a reta numérica

Aprendemos em nossa aula que podemos representar os números racionais na forma fracionária e decimal e que para transformar as frações em números decimais basta que façamos a divisão do numerador (número de cima) pelo denominador (número de baixo). Desta forma, entre os números racionais abaixo, assinale o que possui menor valor:
a) 0,95
b) 5/8
c) 3/15
d) 0,35
e) 4/5

Answers

E porque ya lo use y es facil

Couch Emanuel is trying to lose weight. he starts 2017 weighing 296 pounds. If he plans to burn enough calories to lose 3 pounds per week, then how many weeks will pass before Coach Emanuel is at most 251 pounds

Answers

Answer:

15!

Step-by-step explanation:

296-251= 45

45÷3= 15 weeks

hope this works and is correct!

Aidans hourly salary is $11. If Aidan normally works a 40 hour week , then how much is normally earned in a week?

Answers

Answer:

$440

Step-by-step explanation:

40x11=440

hope it helped

plz mark me as brainliest.

Question 2
A laboratory did 36 blood tests on Monday, 43 on Tuesday,
29 on Wednesday, and 48 on Thursday. What is the mean
(average) number of blood tests the lab did each day?
answer choices :
o 45
o 42
o 39
0 33

Answers

Answer:

The answer is 39.

Step-by-step explanation:

The average is the total amount of blood tests divided by the number of days.

Total: 36 + 43 + 29 + 48 = 156 blood tests / 4 days =  39 blood tests per day.

Given x3/4 find a and b when changing to radical form a (square root) b

Answers

Answer:

0.9644

Step-by-step explanation:

                                                                                                                                           

Write the equation for the following relation.
D= {(x, y): (3,9), (5, 25), (2, 4), ...)

Answers

Don’t click that link!!

Answer:

y=x^2

Step-by-step explanation:

Choose the number equal to:

2/3÷(-3).

A) -2

B)-2/9

C)2/9

D)2


Answers

b. -2/9
flip the -3 and make it 1/3 and then multiply

Answer:

B) -2/9

Step-by-step explanation:

2/3 ÷ -3 = 2/3 * 1/-3

2*1 / -3*3

2/-9

-2/9

What is integration of 3x^2

Answers

3*x^3/3+C is a good one

Suppose a normally distributed set of data has a mean of 178 and a standard deviation of 20. Use the 68-95-99.7 Rule to determine the percent of scores in the data set expected to be below a score of 218. Give your answer as a percent and include as many decimal places as the 68-95-99.7 rule dictates. (For example, enter 99.7 instead of 0.997.)

Answers

Answer:

97.7%

Step-by-step explanation:

For a score below 218 :

P(x < 218)

Standard deviation = 20 ; mean = 178

Obtian the standardized score (Zscore) :

Zscore = (x - mean) / standard deviation

Z = (218 - 178) / 20 = 40 / 20 = 2

P(x < Z) = P(Z < 2) = 0.97725 (Z probability calculator)

0.97725 * 100 = 97.725 = 97.7%

This question has two parts. First, answer Part 1. Then, answer Part 2.
Part 1

Which expression does NOT produce the same value for p = 2 as the expression below?

2(p – 1)
A.
p + 2 – p
B.
p – 2 + p
C.
2 + p – 2
D.
2p – 1
Part 2

Which expression is equivalent to 2(p – 1)?
A.
p + 2 – p
B.
p – 2 + p
C.
2 + p – 2
D.
2p – 1

Answers

The answer will be a

daves first three test scores in algebra were 84%, 88%, and 90%. what does he need to earn on the next test so that his average for all four tests is exactly 90%?
A. 92%
B. 87%
C. 100%
D. 98%

Answers

Answer:

C gives you 90.2

Step-by-step explanation:

84+88+90+100=362

362/4=90.2

..Find the missing number? ​

Answers

Answer:

The missing number would be 17

Step-by-step explanation:

Answer: I think it’s 7

Step-by-step explanation:

Can someone please help me figure out the costing for the serving on this recipe.

Steps on how is on: wikihow.com/cost-a-recipe

Answers

Triangle JKL with vertices J(-5,5), K(5, 7),
and L(2, 3) in the x-axis.

(q1) Find the area of the region bounded by the graphs of y = x - 2 and y2 = 2x - 4.

Answers

the area of the region bounded by the graphs of y = x - 2 and [tex]y^2 = 2x - 4[/tex], is 0.67.  Option D

To find the area of the region bounded by the graphs of y = x - 2 and[tex]y^2 = 2x - 4,[/tex]we need to determine the points of intersection between the two graphs and then integrate the difference between the two functions within the bounds.

Let's begin by finding the points of intersection:

Setting the two equations equal to each other, we have:

x - 2 = 2x - 4

Simplifying the equation, we get:

x = 2

Substituting x = 2 into either equation, we find the corresponding y-value:

y = 2 - 2 = 0

So the points of intersection are (2, 0).

Now, we need to determine the bounds for integration. The graphs intersect at x = 2, so the region of interest lies between x = 0 and x = 2.

To find the area, we integrate the difference between the two functions within these bounds:

A = ∫[0,2] (x - 2 - √(2x - 4)) dx

We can simplify this equation as follows:

A = ∫[0,2] (x - 2 - (2x - 4)^(1/2)) dx

= ∫[0,2] (x - 2 - (2(x - 2))^(1/2)) dx

= ∫[0,2] (x - 2 - 2(x - 2)^(1/2)) dx

To evaluate this integral, we need to use numerical methods or software. Integrating the equation within the bounds gives us an area of approximately 0.67 sq. units.Therefore, the correct answer is Option D

For more question on area visit:

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The students in two English classes were asked how many minutes they read each day.

Answers

Answer:

Step-by-step explanation:

what are the answers to choose from

If you have $2000 and you made an investment that cost $400 and it gives back 1000 how much

Answers

Answer:

you made 600 profit

Step-by-step explanation:

2000-400=1600

1600+1000=2600

2600-2000=600

Answer: 2600

Step-by-step explanation:

2000 - 400 = 1600 + 1000 = 2600

twice the difference of v and z

Answers

Answer:

me

Step-by-step explanation:

becaus im the bes guy

PLEASE HELP I WILL MARK YOU BRAINIEST

Answers

x > 1/3
i’m not 100% sure but i hope it’ll help
Add 17 to both sides and you get:
3x > 1

Find the annual percentage yield of a saving account that pays 2.75% compounded quarterly

Answers

Answer:

The annual percentage yield is of 2.78%.

Step-by-step explanation:

Annual percentage yield of an account:

The annual percentage yield of an account compounded n times during the year with a decimal interest rate of r is given by:

[tex]Y = (1+\frac{r}{n})^n - 1[/tex]

Pays 2.75% compounded quarterly

This means that [tex]r = 0.0275, n = 4[/tex]. So

[tex]Y = (1+\frac{r}{n})^n - 1[/tex]

[tex]Y = (1+\frac{0.0275}{4})^4 - 1[/tex]

[tex]Y = 0.0278[/tex]

0.0278 = 2.78%

The annual percentage yield is of 2.78%.

Please help me with this (if y’all give me some bs link I’ll report :)) pls and thank you kindly

Answers

Answer:

a=8 b=3/2

Step-by-step explanation:

so here a is the initial value which 8

then we can plug in 2 for x and 18 for f(x) to find b

f(x)=8*b^x

18=8*b^2

18/8=b^2

9/4=b^2

b^2=(3/2)^2

b=3/2

True/False?: A best-fit line is created to model data comparing the gasoline consumed by a car (x) and the distance traveled in the car (y). The equation is y=24x−1. One possible explanation for the y-intercept being −1 is that cars that idle (sit still) also use some gas. So, while the model predicts that cars get 24 miles of travel per gallon of gas consumed, some gas is consumed just by a car running (not traveling).

Answers

Answer:

TRUE

Step-by-step explanation:

Other Questions
Use the algebraic properties of vectors to answer the questions below. z a.) -3 + 5 b.) Find a unit vector in the direction of the vector 1 write a method for the invitation class that accepts a parameter and uses it to update the address for the event. write the method below. What data types would you assign to the City and Zip fields when creating the Zips table?a. TEXT to City and SHORT to Zip b. LONGTEXT to City and TEXT to Zip c. TEXT to City and TEXT to Zip d. SHORT to City and SHORT to Zip if e = -2.0 v and e = 1 v a. circle everything that must be true: q=1 q>1 q a right triangle had side lengths d,e,and f as shown below. use these lengths to find sin x cos x and tan x Assume your gross pay per pay period is $2,850 and you are in the 26 percent tax bracket (ignore provincial taxes). Calculate your net pay and spendable income in the following situations: a. You save $200 per pay period in a TFSA after paying income tax on $2,850. (Omit the "$" sign in your response.) Spendable Income $ b. You save $200 per pay period in an RPP. (Omit the "$" sign in your response.) Spendable Income Which of the following amortization methods ignore the residual value in the calculation of the annual depreciation expense? O Double-declining balance and capital cost allowance. O Straight-line and double-declining-balance. O Straight-line and capital cost allowance. O Present value and straight-line. Assume x and y are functions of t. Evaluate dy/dt for the following.Y = 2x + 6 ; dx/dt = 2, x = 1, y = 2 dy/dt = ___(Round to two decimal places as needed.) 1. A business machine valued at $800 was contributed to acharitable organization during the year. The machine cost $1,000but was depreciated down to $600 before the donation was made.Indicate the c Find the volume of the region defined by D = {(x, y, z): 0 r+y 1,0 y + z 2, 0x+z 3}. -J 1 dV, where R is the region bounded by ry = 1, xy = 4, xz = 1, xz = 9, yz = 4, and yz = 9 in the first octant. w to find the volume of the region Use the transformation r = u, y = v, and z = bounded by the surface x + y+z = 1 and the coordinate planes. please show all steps4) [10 points) Find T(I), N(t), ay, and ay for the space curve r(t) =(21 - 1)i+rj-4k. Celaneo Avionics makes aircraft instrumentation. Its basic navigation radio requires $60 in variable costs and $4,000 per month in fixed costs. Celaneo sells 20 radios per month. If the company further processes the radio, to enhance its functionality, it will require an additional $40 per unit of variable costs, plus an increase in fixed costs of $500 per month. The current sales price of the radio is $280. The CEO wishes to improve operating income by $1,200 per month by selling the enhanced version of the radio. In order to meet this target, the sales price to be charged for the enhanced product is A. $380 per unit B. $125 per unit C. $320 per unit D. $405 per unit A small business produces a single product and reports the following data: Sales price Variable cost Fixed cost $8.00 per unit $5.30 per unit $22,000 per month units per Volume 10,000 month The company believes that the volume will go up to 12,000 units if the company reduces its sales price to $7.25. How would this change affect operating income? A. It will increase by $3,600. B. It will decrease by $5,000. C. It will decrease by $3,600. D. It will increase by $5,000. Fuller Industries is considering replacing a machine that is presently used in its production process. Which of the following amounts represents a sunk cost? Replacement Machine $46,000 5 0 age Original cost Remaining useful life in years Current in years Book value Current disposal value in cash Future disposal value in cash (in 5 years) Annual cash operating costs Old Machine $60,000 5 5 $30,000 $9,000 $0 $7,000 $0 $4,000 A. $60,000 B. $30,000 C. $9,000 D. $46,000 Artisan Works is owned and operated by a craftsman who makes replicas of historic firearms for museums, sportsmen, and collectors. The data are as follows: Sales price per unit Variable cost per unit Fixed costs per month $800 470 11,550 If Artisan expects to sell 40 units per month, what is his margin of safety expressed in units per month? O A. 5 units B. 3 units C. 75 units D. 40 units Ambrosia Foods produces a gourmet condiment that sells for $16 per unit. Variable cost is $10 per unit, and fixed costs are $8,000 per month. If Ambrosia expects to sell 1,500 units, compute the margin of safety in units. (Round any intermediate calculations and your final answer to the nearest whole unit.) A. 167 units B. 1,333 units C. 83 units D. 1,500 units Monique has the opportunity to purchase a new piece of equipment for her factory. She wants to calculate the Weighted Average Cost of Capital (WACC) for her current operations. Long term borrowings make up 25% of the business's capital. The applicable interest rate paid for this is 6% per annum. The current tax rate that the business pays is 20%. The business is listed on the ASX and information from Bloomberg has calculated that the Beta for it (and other similar listed businesses) is 0.6. Bloomberg also states that the Market Risk Premium is 2% and the Government Bond Rate (risk free rate) is 3%. a. Calculate the cost of Debt Capital for the business (allow for the tax deductibility of the debt). (1 mark) b. Assuming that her business has only ordinary shares, calculate the cost of Equity Capital for the business. (1 mark) c. With your answers in a. and b. calculate the current WACC for Monique's business that should be used when considering new purchases of equipment. (2 marks) d. If the returns generated by purchasing the new piece of equipment equate to an 7.5% payback, should Monique go ahead with the investment? Why? A large regional movie theater has two profit centers (ticket sales and snack concessions) and one cost center (restrooms). The new accounting team has been tasked with setting up a responsibility accounting reporting framework for the theater. The theater has 16 auditoriums (ten of the auditoriums have 150 seats each; the other six auditoriums each have 400 seats) A large concessions area Two large restrooms Required Propose an expense allocation system for one of the following categories of expenses 1. Heating/air conditioning 2. Rent 3. Insurance 4. Wages paid to hourly employees (assume that all employees are "floaters" who share in all theater duties: selling and taking tickets: selling concessions: cleaning auditoriums and restrooms) in your solution, be sure to explain how your expenses will be allocated to the profit centers (ticket sales and snack concessions and the cost center (restrooms. The appropriate allocation base(s) are for you to decide Your solution should be about one paragraph long and does not need to contain any number For the following CPI (Consumer Price Index), data, 2021. CPI = 125 2022: CPI = 129 Compute the inflation rate in 2022. Crank 2 of is driven at 2= 60 rad/s (CW). Find the velocity of points B and C and the angular velocity of links 3 and 4 using the instant-center method. The dimensions are in centimeters.Hint: work on the scaled chart (printed) and use a known dimension (say 15.05 cm) as a scale to obtain dimensions in need. A partnership has the following capital balances with partners' profit and loss percentages indicated parenthetically: Henry (60%) $ 64,000 Thomas (30%) 80,000 Catherine (10%) 148,000 Anne is going to invest $57,000 into the business to acquire a 30 percent ownership interest. Goodwill is to be recorded. What will be Anne's beginning capital balance? Metropolitan Car Service BureauMetropolitan Car Service Bureau needs a system that keeps car service records. The companys analyst has provided information about the problem domain in the form of notes. Your job is to use those notes to draw the domain model class diagram. The analysts notes are as follows: The Owner class has the attributes name and address. The Vehicle class is an abstract class that has the attributes VIN, model, and model year. There are two types of vehicles, cars and trucks: Car has additional attributes for the number of doors and luxury level. Truck has an additional attribute of cargo capacity. The Manufacturer class has the attributes name and location. The Dealer class has the attributes name and address.A service record is an association class between each vehicle and a dealer, with the attributes service date and current mileage. A warranty service record is a special type of service record with an additional attribute: eligibility verification. Each service record is associated with a predefined service type, with the attributes type ID, description, and labor cost. Each service type is associated with zero or more parts, with the attributes part ID, description, and unit cost. Parts are used with one or more service types.An owner can own many vehicles, and a vehicle can be owned by many owners. An owner and a vehicle are entered into the system only when an owned vehicle is first serviced by a dealer. Vehicles are serviced many times at various dealers, which service many vehicles.1. Draw a UML domain model class diagram for the system as described here. Be as specific and accurate as possible, given the information provided. If needed information is not given, make realistic assumptions.2. Answer True or False to the following statements, which are based on the domain model. You may want to draw a semantic net to help you think through the questions.a. This domain model is for a single car dealer service department.b. This domain model is for a single car manufacturer.c. A vehicle can have service records with more than one dealer.d. A dealer can service vehicles from more than one manufacturer.e. Current mileage is recorded for service records and warranty service records.f. An owner can have each of his or her cars serviced by a different dealer.g. A warranty service for a car can include many parts.h. A vehicle can be made by more than one manufacturer.3. Consider that a vehicle goes through many states and state transitions from the perspective of Metropolitan. For example, a new vehicle might be brought in for the first time. A previously serviced vehicle might be brought in. Think through the sequences that go on for a vehicle when it is being worked on by Metropolitan. Draw a state machine diagram showing states and state transitions, including names for the transitions. A transformer for a laptop computer converts a 220-V input to a 10-V output. Write down the equations that show that the primary coil has twenty two times as many turns as the secondary coil. The Reserve Bank of Australia published a Financial Stability Report in April 2022. In that report they highlighted that households in the Australian economy have a high level of mortgage debt and that house prices have increased in recent years. Explain why this is viewed as a cause for concern for financial stability.