A can do a piece of work in 20 days and B can do it in 12 days,B work for 9 days,in how many days A alone can do the work​

Answers

Answer 1

Answer: 9

Step-by-step explanation:


Related Questions

A computer software company conducted a telephone survey asking its customers how the software could be improved. Assume the survey was conducted by asking the questions below. Each of the questions defines a variable of interest to the company. Classify the data generated for each variable as quantitative or qualitative. Justify your classification.

Required:
a. Is the variable of interest defined by the question "How many hours per week do you use our software?" quantitative or qualitative?
b. Is the variable of interest defined by the question "For how many years have you been using our software?" quantitative or qualitative?

Answers

Answer:

Quantitative

Quantitative

Step-by-step explanation:

Given the following research questions to classify:

a. Is the variable of interest defined by the question "How many hours per week do you use our software?

This is a quantitative variable, because the question requires a numerical response such as 5. 10, 2 4 and so on upon which numerical or statistical calculations such as addition, subtraction, range, mean and so on can be performed.

B.) For how many years have you been using our software?

This is also a quantitative variable as the question expects a response of Numeric characteristic such as 2, 3 and so on depending on the number of years the respondent has been using the software

The median of 32,,21,60,3,5,17

Answers

Answer:

19

Step-by-step explanation:

Answer: 19

Explanation:

Write the number in ascending form:

3,5,17,21,32,60

Find median:

Median = (17+21)/2 = 38/2 = 19

Now, look at the set of integers. Complete the table for the closure property if integers under the four operations.

Answers

Answer:

See below.

Step-by-step explanation:

Addition: closed

Example: -5 + 10 = 5, and -5, 10, and 5 are all integers

Subtraction: closed

Example: 10 - 8 = 2, and 10, 8, and 2 are all integers

Multiplication: closed

Example: -4 * 7 = -28, and -4, -7 and -28 are all integers

Division: not closed

Example: 5/2 = 2.5, and 2.5 is not an integer, although 2 and 5 are integers

The set of integers is closed under addition, subtraction, and multiplication because any addition, subtraction, or multiplication of integers always results in an integer.

The set of integers is not closed under division because a division of integers does not always result in an integer.

Solve for y in terms of x. Determine if y is a function of x. If it is, rewrite using f(x) notation. If not, enter ND in the answer field.

7x-5y=2

Answers

Answer:

y =  (7x-2)/5

Step-by-step explanation:

Given the expression 7x-5y = 2, we are to write y in terms of x. to do that, we will have to make y the subject of the formula from the given expression as shown;

7x-5y = 2

subtract 7x from both sides of the equation

7x-5y-7x = 2-7x

-5y = 2-7x

Multiply through by minus sign

-(-5y) = -(2-7x)

5y = -2+7x

5y = 7x-2

Divide both side by 5;

5y/5 = (7x-2)/5

y =  (7x-2)/5

Hence the expression y as a function of x is given as y =  (7x-2)/5

plss help asap im on a time limit

Answers

Answer: the first one

Step-by-step explanation: just trust me ;)

It’s a Good Friday, a Friday with no school

1. GIVE ANOTHER NAME FOR CM?

Answers

Answer:

decimetre is the answer


Marcie wants to find the total number of students with black hair in the freshman class at her school. She has observed 5 of the 9 freshman homerooms. The graph shows the number of students
with black hair she has counted so far. Based on this information, which is the best protection of the total number of students with black hair and then 9 freshman homerooms at Marcie's school?

Answers

Answer: 1/8

Step-by-step explanation: 9/5 = 1/8

Plz help me I’m md lost rn!

Answers

Answer:

6.4 km

Step-by-step explanation:

4x1.6

Answer:

6.4 km

Step-by-step explanation:

1.6 * 4 = 6.4

solve the equation (5x-7)(-3x+2)

Answers

Answer:

[tex]\large\boxed{-15x^{2} + 31x - 14}[/tex]

Step-by-step explanation:

(5x - 7)(-3x + 2)

The values inside of the parenthesis cannot be simplified, so distribute and multiply.

Distribute

(5x - 7)(-3x) + (5x - 7)(2)

Multiply

-15x² + 21x + 10x - 14

Add 21x to 10x

-15x² + 31x - 14

[tex]\large\boxed{-15x^{2} + 31x - 14}[/tex]

Hope this helps :)

Match the vocabulary to the correct operation PLZ ANSWER:(

Answers

Product=multiplication
Sum=addition
Difference=subtraction
Quotient=division
Quantity=parentheses

write the equation of the parabola in vertex form vertex (0,0) passes through (2,1)

Answers

Answer:

[tex]f(x)=\frac{1}{4}x^2[/tex]

Step-by-step explanation:

Recall the vertex form of a quadratic equation:

[tex]f(x)=a(x-h)^2+k[/tex]

Where (h,k) is the vertex.

We are told that the vertex is (0,0). Therefore:

[tex]f(x)=a(x-0)^2+(0)[/tex]

Simplify:

[tex]f(x)=ax^2[/tex]

So, to finish the equation, we need to find a.

We know that a point is (2,1). Thus, substitute 1 for f(x) and 2 for x:

[tex]1=a(2)^2[/tex]

Square:

[tex]1=4a[/tex]

Divide both sides by 4:

[tex]a=\frac{1}{4}[/tex]

So, our a value is 1/4.

And we can thus complete our equation:

[tex]f(x)=\frac{1}{4}x^2[/tex]

And we are done :)

What is the additive inverse of 3x+4

Answers

Answer: y = (x - 7)/3

Step-by-step explanation:

The answer is -3x-4.

For f(x)=-x^2-2x-2, find f(x+h)-f(x)/h

Answers

see the both photos for answer

Solve each system of equations of equations.

x + y = -6

2x - y = 3​

Answers

Answer:

x = -1, y = -5

Step-by-step explanation:

x + y = -6

2x - y = 3​

Add the two equations together to eliminate y

x + y = -6

2x - y = 3​

------------------

3x =  -3

Divide by 3

3x/3 = -3/3

x = -1

Now find y

x+y = -6

-1+y = -6

Add 1 to each side

-1+1 +y = -6+1

y = -5

Samara Park gets $0.25 for each pound of apricots she dries. How much will she be paid if she dries 16.4 pounds?

Answers

4.100 good luck :))))))))))

Samara will be paid $4.10 for drying 16.4 pounds of apricots.

How to calculate payment?

To calculate the payment for the purchase of the item, we can use the formula:

Payment = Rate × Amount

Here, the rate is the amount paid per pound and the amount is the total number of pounds item.

To calculate Samara's payment for drying apricots, we can use the formula:

Payment = Rate × Amount

As per the question, the rate is $0.25 per pound, and the amount is 16.4 pounds.

So, substitute these values into the formula:

Payment = $0.25 × 16.4

Multiply $0.25 by 16.4:

Payment = $4.10

Therefore, Samara will be paid $4.10 for drying 16.4 pounds of apricots.

Learn more about the payments here:

https://brainly.com/question/6593069

#SPJ2

Tyler needs to complete this table for his consumer science class. He knows that 1 tablespoon contains 3 teaspoons and that 1 cup contains 16 tablespoons. What belongs in cell A?

Answers

Answer: 96 teaspoons

Step-by-step explanation:

If 1 cup contains 16 tablespoons the 2 cups will contain;

= 16 * 2

= 32 tablespoons

If 1 tablespoon contains 3 teaspoons then 32 tablespoons will contain;

= 32 * 3

= 96 teaspoons

What value of q makes the equation true? -8=32-5q

Answers

Answer:

8

Step-by-step explanation:

A 12-ft ladder leaning against a house makes a 64 degree angle with the ground. Will the ladder reach a window sill that is 10.5 ft up from the base of the house?

Answers

Answer:

Yes, it will

Step-by-step explanation:

Given

Length of Ladder = 12 ft

Angle = 64

Required

Determine if it'll reach a height of 10.5ft from the base

See attachment for proper illustration.

From the attachment, we want to determine that x be greater than 10.5

Using sin formula:

[tex]Sin\ 64 = \frac{x}{12}[/tex]

Multiply through by 12

[tex]x = 12 * sin\ 64[/tex]

[tex]x = 12 * 0.8988[/tex]

[tex]x = 10.79[/tex] (Approximated)

Since 10.79 is greater than 10.5, then the ladder will reach the window

sin64 = x/12

x = 12* sin64

Solve the following system of equations algebraically:
y= 16x2 + 9x – 5
y = –2 – 6

Answers

Step-by-step explanation:

Is the x between 16 and 2 for multiplication or are you using it as a variable??

ILL GIVW YOU BRAINLIST !!! HAVE TO GET IT RIGHT !!!! SHOW WORK

my - 2x

m=3 , y=6 , x = 8

Answers

Answer:

2

Work is shown in picture

Someone pls help it’s a very short question!!!
(dont judge me I forgot)

Answers

Answer:

12.) 13 008 13.) 4 069 604

Answer:

12)  13008

13)  4069604

Step-by-step explanation:

Problem 12)

10000+ 3000 + 8 = 13008

Problem 13)

4 x 1000000 + 6 x 10000 + 9 x 1000 + 6 x 100 + 4 x 1 =

4000000 + 60000 + 9000 + 600 + 4 = 4069604

When did the United States first establish its measuring system, and who was responsible for
picking the system?

Answers

Answer:

1975 Thomas Jefferson

Step-by-step explanation:

O produtor rural Ricardo Antunes Peixoto, 55 anos, teve uma surpresa enquanto perfurava um poço artesiano em sua fazenda, na zona rural de Brasília de Minas (MG). "Não saiu água, mas saiu fogo", diz, espantado. Uma equipe com cinco operários de uma empresa especializada trabalhou durante dois dias na propriedade para abrir o poço de água, mas, após escavarem 204 metros, o que encontraram foi um produto inflamável, que seria gás natural. O dono da fazenda Lagoa Misteriosa espera lucrar com a descoberta da reserva de gás. "Pelo menos, que se têm notícias no estado, este é o primeiro caso. Agora, com o dinheiro que eu vender o gás, vou abrir [um novo poço] para ter a minha água". Disponível em: . Acesso em: 12 abr. 2013. Considerando a combustão completa do metano, nas CNTP, determine a energia liberada na queima de 224 L de metano que foi em encontrado no poço desse agricultor. Dados: C–H = 416 kJ/mol C?O = 805 kJ/mol O?O = 498 kJ/mol O–H = 464 kJ/mol A. –2 660 kJ/mol B. –8 060 kJ/mol C. –1 220 kJ/mol D. –4 030 kJ/mol E. –2 600 kJ/mol

Answers

O produtor rural Ricardo Antunes Peixoto, 55 anos, teve uma surpresa enquanto perfurava um poço artesiano em sua fazenda, na zona rural de Brasília de Minas (MG). "Não saiu água, mas saiu fogo", diz, espantado. Uma equipe com cinco operários de uma empresa especializada trabalhou durante dois dias na propriedade para abrir o poço de água, mas, após escavarem 204 metros, o que encontraram foi um produto inflamável, que seria gás natural. O dono da fazenda Lagoa Misteriosa espera lucrar com a descoberta da reserva de gás. "Pelo menos, que se têm notícias no estado, este é o primeiro caso. Agora, com o dinheiro que eu vender o gás, vou abrir [um novo poço] para ter a minha água". Disponível em: . Acesso em: 12 abr. 2013. Considerando a combustão completa do metano, nas CNTP, determine a energia liberada na queima de 224 L de metano que foi em encontrado no poço desse agricultor. Dados: C–H = 416 kJ/mol C?O = 805 kJ/mol O?O = 498 kJ/mol O–H = 464 kJ/mol A. –2 660 kJ/mol B. –8 060 kJ/mol C. –1 220 kJ/mol D. –4 030 kJ/mol E. –2 600 kJ/mol

Solve for r:
B=dPIEr^2

Answers

Answer:

C

Step-by-step explanation:

So we have the equation:

[tex]B=d\pi r^2[/tex]

And we want to solve for r.

So first, isolate the r variable. Divide both sides by dπ. So:

[tex]\frac{B}{d\pi}=\frac{d\pi r^2}{d\pi}[/tex]

The right side cancels:

[tex]\frac{B}{d\pi}=r^2[/tex]

Take the square root of both sides:

[tex]r=\sqrt\frac{B}{d\pi}[/tex]

We can rearrange the terms:

[tex]r=\sqrt\frac{B}{\pi d}[/tex]

Our answer is C.

Sofia ordered sushi for a company meeting. They change plans and increase how many people will be at the
meeting, so they need at least 100 pieces of sushi in total.
Sofia had already ordered and paid for 24 pieces of sushi, so she needs to order additional sushi. The sushi
comes in rolls, and each roll contains 12 pieces and costs $8.
Let R represent the number of additional rolls that Sofia orders.

Answers

Answer: D: 24 + 12R ≥ 100

(Select all that Apply)
Which of the following is an equation?
O 11=11
6+5=11
6 +5 – 11
06-5=11

Answers

B: 6 + 5 = 11

six plus five does equal 11 and an EQUAtion needs to EQUAL :) ❤️
6 + 5 = 11 !
it’s simple addition ,, just add 6 to 5 & you got your answer .

Please Help Me!!!!!!!
20. What is the least amount of principal you can invest at an 8% interest rate to earn at least $1000 in interest in 3 years?(Round your answer to the nearest dollar.)
A. $240
B. $5167
C. $20000
D. $4167
E. $6367
F. cannot be determined

Answers

cannot be determined is the answer.

Answer:

F. cannot be determined

Step-by-step explanation:

not enough information

What is the median of 6.5, 4.5, 6.5, 4.5, 5, 4.5, 9, 3.5

Answers

4.75 is the answer list from least to greatest find the number in the middle

How to do this?
No 5

Answers

Answer:

M=24

Step-by-step explanation:

because 2+3+6x2=24

what is 327 divided by 55

Answers

Answer:

[tex]5\frac{52}{55}[/tex]

Step-by-step explanation:

[tex]\frac{327}{55}=5\quad \mathrm{Remainder}\quad \:52\\\\\mathrm{Convert\:to\:mixed\:number:\:Quotient\frac{Remainder}{Divisor}}\\\\\frac{327}{55}=5\frac{52}{55}\\\\5\frac{52}{55}[/tex]

5.94545454... because google said so
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