5. Un tanque contiene 9 litros de agua si se abre el grifo que vierte tres litros de agua por minuto y y es la cantidad de agua (en litros), que hay en el tanque después de x minutos​

Answers

Answer 1

The equation that models the amount of water in the tank after x minutes is:

y = -3x + 9

How many liters are there after x minutes?

We know that the tank contains 9 liters of water, and it loses water at a constant rate of 3 liters per minute.

Then we can model the amount of water y in the tank after x minutes with a linear equation where the y-intercept is 9 and the rate of change is -3 (the amount it loses per unit of x)

Then the equation is:

y = -3x + 9

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Related Questions

A hotel sets up tables for a conference for 156 people if each tables seats 12 people, how many tables will be needed?

Answers

13 :D













.....................

Can I please get help with this?

Can I please get help with this?

Answers

\(~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$4000\\ r=rate\to 2.7\%\to \frac{2.7}{100}\dotfill &0.027\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{\underline{semi-annually}, thus twice} \end{array}\dotfill &2\\ t=years\dotfill &10 \end{cases}\)

\(A = 4000\left(1+\frac{0.027}{2}\right)^{2\cdot 10}\implies A=4000(1.0135)^{20} \implies \boxed{A \approx 5230.40} \\\\[-0.35em] ~\dotfill\)

\(~~~~~~ \textit{Annual Percent Yield Formula} \\\\ ~~~~~~~~~~~~ \left(1+\frac{r}{n}\right)^{n}-1 ~\hfill \begin{cases} r=rate\to 2.7\%\to \frac{2.7}{100}\dotfill &0.027\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{\underline{semi-annually}, thus twice} \end{array}\dotfill &2 \end{cases} \\\\\\ \left(1+\frac{0.027}{2}\right)^{2}-1\implies 1.0135^2-1\approx 0.02718 ~~ \approx ~~ \stackrel{ 0.02718\times 100 }{\boxed{2.718~\%}}\)

*WILL GIVE BRAINLIEST FOR THE BEST ANSWER IF YOU DONT KNOW IT DONT ANSWER*

3r = 6r − 6

r =

Answers

Answer:

2

Step-by-step explanation:

3r-6r=-6

-3r=-6

3r=6

r=2

Could you please mark me Brainliest? Thanks! ;)

r = 2

3r=6r-6=

3r=2

r=2

Sorry if i'm wrong I'm not good at math

~Jane~

In a sample of 800 adults, 242 said that they liked sugar cereals. Three adults are selected at random without replacement. Find the probability that all three like sugar cereals.

Answers

Answer:

\(P(A) = 0.0274\)

Step-by-step explanation:

Given

\(n = 800\) --- Population

\(A = 242\) --- those that liked sugar cereals

Required

Probability that three selected like sugar cereals

The probability that the first adult selected likes sugar cereals is:

\(P(A_1) = \frac{242}{800}\)

The probability that the second adult selected likes sugar cereals is:

\(P(A_2) = \frac{242-1}{800-1} = \frac{241}{799}\)

We subtracted 1 because it is a probability without replacement

Similarly:

\(P(A_3) = \frac{241-1}{799-1} = \frac{240}{798}\)

The required probability is calculated as follows:

\(P(A) = P(A_1) * P(A_2) * P(A_3)\)

\(P(A) = \frac{242}{800} * \frac{241}{799} * \frac{240}{798}\)

\(P(A) = \frac{242*241*240}{800*799*798}\)

\(P(A) = \frac{13997280}{510081600}\)

\(P(A) = 0.0274\)

A family-size pizza is $32 and costs 4 times as much as a small pizza. Steve buys two family-size pizzas and 4 small pizzas. How much does he spend in all?
A. $64
B. $86
C. $80
D. $96

Answers

The answer is D your welcome


What number is 1/2% of 96? Round the answer to the

nearest hundredth if necessary.

Answers

Answer:

48

Step-by-step explanation:

some adults and children are watching a musical there are n children there are 25 fewer adults

Answers

According to the concept of algebraic expression and arithmetic, the correct answers are A) Number of adults = N - 25. B) Number of adults when N = 124: 124 - 25 = 99

A) Let's denote the number of children as N. Since there are 25 fewer adults than children, the number of adults can be expressed as N - 25.

B) If there are 124 children, we substitute N with 124 in the expression from part A. Thus, the number of adults would be 124 - 25 = 99.

To arrive at these answers, we used the given information that there are "N" children and 25 fewer adults than children. By substituting the value of N, we determined the number of adults in terms of N and then calculated the specific number of adults when N is equal to 124.

Note: The given question is incomplete. The complete question is:

Some adults and children are watching a musical. there are 'N' number of children. There are 25 fewer adults than children.

A) find the number of adults in terms of 'N'.

B) if there are 124 children how many adults are there?​

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A theater sold 1,802 tickets for
their Saturday evening
performance. This was 635 more
than the number of tickets sold
for the matinee performance. If
tickets cost $75 each, find the
total ticket sales for two
performances.

Answers

Answer:

the answer would be 2,969 also i think the cost of tickets is pretty useless

Step-by-step explanation:

Answer:2,969

Step-by-step explanation:

(Giving Brainliest) A skateboarding ramp is 10 in. high and rises at an angle of ​21°. How long is the base of the​ ramp? Round to the nearest inch.

Answers

Answer:

26 inches

Step-by-step explanation:

Tan = opp/adj = height/base

tan 21 = 10/base

base = 10/tan21

base = 26.050890646938015

Rounded

26 inches

Answer:

26 in. to nearest inch.

Step-by-step explanation:

tan 21 =  10 / L   where L is the length of the base.

L = 10 / tan 21

= 26.05 in.

when finding the area of a circle, is it 3.14 r x2 or 3.14 r²?

Answers

The area of a circle is given by the formula,

\(Area\text{ = }\pi r^2\)

Where,

\(\pi\text{ = 22/7 or }\pi\text{ = 3.14}\)

Thus the generalized form is,

\(Area\text{ = 3.14r}^2\text{ units}^2\)


What is
4 + (5² - 2³) =

Answers

Answer:

Step-by-step explanation:

4+(25-512)=-487+5=-482

The value of the given expression by basic number system law will be 21.

What is a number system?

The number system is a way to represent or express numbers.

A decimal number is a very common number that we use frequently.

Any of the multiple sets of symbols and the guidelines for utilizing them to represent numbers are included in the Number System.

As per the given expression,

4 + (5² - 2³)

By basic number system concepts,

⇒ 4 + (25 - 8)

⇒ 4 + 17

⇒ 21

Hence "The value of the given expression by basic number system law will be 21".

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What is the range of the function? f(x)=3^x−1−2

Answers

The range of the equation f(x) = 3ˣ ⁻ ¹ - 2 is  y > -2

Calculating the range of the equation?

From the question, we have the following parameters that can be used in our computation:

f(x) = 3ˣ ⁻ ¹ - 2

The above equation is an exponential function

The rule of an exponential function is that

The domain is the set of all real numbersHowever, the range is always greater than the constant term

In this case, it is -2

So, the range is y > -2

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The equation y = 18x describes the amount of money Spongebob earns as a fry cook, where x is the
number of hours he works and y is the amount of money he earns. Show work. Complete sentence.
The table shows the amount of money Squidward earns as a cashier for different numbers of hours worked.
Squidward’s Earnings
Time (h) 3 5 8 10
Money earned
($) 48 80 128 160
(a) How much money does Spongebob earn per hour?
(b) How much money does Squidward earn per hour?
pls help and explain

Answers

Answer:

a. 18 dollars per hour

b. 16 dollars per hour

Step-by-step explanation:

for a, 18 is the slope of y=18x, meaning spongebob earns 18 dollars per hour

for b, since it seems like squidward earns 32 dollars every 2 hours, it can be guessed that he earns 16 dollars per hour, since 32/2 = 16

what is the answer for 6x + 3(x-2)

Answers

Answer:

9x - 6

Hope this helps! <3

(If you need a step by step lmk)

Answer:

6x+3(x-2)

6x+3x-6

9x-6

You play a game on your phone. For every correct move you make you receive 50 points. For every second that it takes you to complete the game, you lose 3 points. You complete the game in 2 minutes 45 seconds using 35 correct moves. What is your score?

Answers

Answer:

Step-by-step explanation:

what

I don’t understand it

Find a​ point-slope form for the line with slope 1/5 and passing through the point (-7,-3)

Answers

Point slope: y - y1 = m(x - x1)
Plug everything in
Point slope: y + 3 = 1/5(x + 7)

Graph $y=5x-2$y=5x−2​ . LineMove UndoRedoReset

Answers

y = 5x - 2

graph:

(attached)

Graph $y=5x-2$y=5x2 . LineMove UndoRedoReset

I am stuck on this question it was can you add 4+2x to get 6x

Answers

Answer:

No you can't.

Step-by-step explanation:

4 is an integer, and 2x isn't so you can't add them together. If 4 was 4x or 2x was 2, then you'd get 6, but you can't add them. Hope this helps :)

Given the function f(x) = 0.5|x - 41-3, for what values of x is f(x) = 7?
x = -24, x = 16
x= -16, x = 24
x=-1, x = 9
x = 1, x = -9

Answers

The values of x for which f(x) = 7 are x = 61 and x = 21.

To find the values of x for which f(x) = 7, we can set up the equation and solve for x.

The given function is f(x) = 0.5|x - 41| - 3.

Setting f(x) equal to 7, we have:

0.5|x - 41| - 3 = 7.

First, let's isolate the absolute value term:

0.5|x - 41| = 7 + 3.

0.5|x - 41| = 10.

To remove the absolute value, we can consider two cases:

Case: (x - 41) is positive or zero:

0.5(x - 41) = 10.

Multiplying both sides by 2 to get rid of the fraction:

x - 41 = 20.

Adding 41 to both sides:

x = 61.

So x = 61 is a solution for this case.

Case: (x - 41) is negative:

0.5(-x + 41) = 10.

Multiplying both sides by 2:

-x + 41 = 20.

Subtracting 41 from both sides:

-x = -21.

Multiplying both sides by -1 to solve for x:

x = 21.

So x = 21 is a solution for this case.

Therefore, the values of x for which f(x) = 7 are x = 61 and x = 21.

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What is 9(-7)?
I don't even know this

Answers

-63. Hope this helps!

Can have brainliest?

Answer:

-63

Step-by-step explanation:

If you know how to multiply it without the negative then you could take that answer and then put a negative at the beginning.

What would 2y + y be? Would it just be 2y or would it be 3y? Help

Answers

it would be 3y because y=1

Answer: 2y+y would be 3y

Step-by-step explanation:hope it helps :)

Are quadrilaterals ABCD and EFGH similar?

Are quadrilaterals ABCD and EFGH similar?

Answers

Yes, quadrilaterals ABCD and EFGH are similar because a translation of (x + 1, y + 3) and a dilation by the scale factor of 3 from point D′ map quadrilateral ABCD onto EFGH.

What are quadrilaterals?

The properties of quadrilaterals are;

Number of sides is equal to fourNumber of vertices  is equal to fourNumber of diagonals is twoSum of all interior angles is equal to 360 degrees

From the information given, we can see that;

ABCD and EFGH are similar because a translation of (x + 1, y + 3) and a dilation by the scale factor of 3

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The residual plot shows the residuals for the day of the month and the amount in Kali’s checking account. Which statement best assesses the linearity of the relationship between the day of the month and account balance if the scatterplot appears to be reasonably linear?

A) Because the residual plot has an obvious pattern, and the scatterplot appears linear, it is appropriate to use the line of best fit to predict the account balance based on the day of the month.
B) Because the residual plot has an obvious pattern, and the scatterplot appears linear, it is not appropriate to use the line of best fit to predict the account balance based on the day of the month.
C) Because the residual plot has no obvious pattern, and the scatterplot appears linear, it is appropriate to use the line of best fit to predict the account balance based on the day of the month.
D) Because the residual plot has no obvious pattern, and the scatterplot appears linear, it is not appropriate to use the line of best fit to predict the account balance based on the day of the month.

Answers

The best assessment of the linearity of the relationship between the day of the month and account balance would be "Because the residual plot has no obvious pattern, and the scatterplot appears linear, it is appropriate to use the line of best fit to predict the account balance based on the day of the month."The correct answer is option C.

When assessing linearity, it is important to examine both the scatterplot and the residual plot. The scatterplot is used to visualize the relationship between the variables, while the residual plot helps us assess the appropriateness of a linear model by examining the pattern of the residuals (the differences between observed and predicted values).

If the scatterplot appears reasonably linear, it suggests that there is a linear relationship between the variables. In this case, since the scatterplot appears linear, it supports the use of a linear model to predict the account balance based on the day of the month.

Furthermore, the residual plot is used to check for any patterns or systematic deviations from the line of best fit. If the residual plot exhibits no obvious pattern and the residuals appear randomly distributed around zero, it indicates that the linear model captures the relationship adequately.

Therefore, if the residual plot shows no obvious pattern, it provides further evidence in favor of using the line of best fit to predict the account balance based on the day of the month.

In conclusion, when the scatterplot appears linear and the residual plot shows no obvious pattern, it is appropriate to use the line of best fit to predict the account balance based on the day of the month.

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Answer:

person above

Step-by-step explanation:

the obvious

The residual plot shows the residuals for the day of the month and the amount in Kalis checking account.

Find the area of the rectangle shown
7 1/2 ft
5 1/4ft

Find the area of the rectangle shown7 1/2 ft5 1/4ft

Answers

Answer:

39 3/8 ft ^2

Step-by-step explanation:

To find the area of a rectangle, multiply the length times the width.

A = l*w

  = 7 1/2  * 5 1/4

Change the mixed numbers to improper fractions.

A = 15/2 * 21/4

    =315/8

Change back to a mixed number.

8 goes into 315 39 times with 3 left over.

 = 39 3/8

Answer:

Area = 39.375 ft²

(you can round to 39.4)

Step-by-step explanation:

Find the area of the rectangle shown

7 1/2 ft

5 1/4ft

7 1/2 = 7.5 ft

5 1/4 = 5.25 ft

Area = L x W

Area = 7.5 x 5.25

Area = 39.375

What values of x
and y
satisfy the system of equations {8x+9y=−36 x+7y=1}

Enter your answer as an ordered pair, like this: (42, 53)

If your answer includes one or more fractions, use the / symbol to separate numerators and denominators. For example, if your answer is (4253,6475),
enter it like this: (42/53, 64/75)

If there is no solution, enter "no"; if there are infinitely many solutions, enter "inf."

Answers

The solution to the system of equations is (x, y) = (-261/47, 44/47) as an ordered pair.

To solve the given system of equations:

Equation 1: 8x + 9y = -36

Equation 2: x + 7y = 1

We can use the method of substitution or elimination to find the values of x and y. Let's use the method of substitution:

From Equation 2, we can solve for x:

x = 1 - 7y

Substituting this value of x into Equation 1:

8(1 - 7y) + 9y = -36

8 - 56y + 9y = -36

-47y = -44

y = 44/47

Substituting the value of y back into Equation 2 to find x:

x + 7(44/47) = 1

x + 308/47 = 1

x = 1 - 308/47

x = (47 - 308)/47

x = -261/47

Therefore, as an ordered pair, the solution to the system of equations is (x, y) = (-261/47, 44/47).

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SET 1: Find the area of each circle below. 14m

Thanks​

SET 1: Find the area of each circle below. 14m Thanks

Answers

Answer:

The area of the circle is 615.44 or 196pi

Step-by-step explanation:

The formula for the area of a circle is pi*r^2=3.14*14^2

which is equal to 615.44m^2

If you are used to calculating in terms of pi, you would use 196pi

x = 13, ¿cuál ecuación es verdadera?

3(18 - x) = 67

4(9x) = 23

2(x-3)=7

5(x-9) = 20

Answers

When x = 13, the equation that is true is option D) 5(x - 9) = 20.

To determine which equation is true when x = 13, we can substitute the value of x into each equation and see which equation holds true. Let's go through each option:

A) 3(18 - x) = 67

Substituting x = 13:

3(18 - 13) = 67

3(5) = 67

15 = 67

The equation is not true when x = 13. Therefore, option A is false.

B) 4(9x) = 23

Substituting x = 13:

4(9*13) = 23

4(117) = 23

468 = 23

Again, the equation is not true when x = 13. Therefore, option B is also false.

C) 2(x - 3) = 7

Substituting x = 13:

2(13 - 3) = 7

2(10) = 7

20 = 7

Once again, the equation is not true when x = 13. Therefore, option C is false as well.

D) 5(x - 9) = 20

Substituting x = 13:

5(13 - 9) = 20

5(4) = 20

20 = 20

Finally, the equation is true when x = 13. Therefore, option D is true.

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Note: the translated questions is

X = 13, which equation is true?

Use the net to find the surface area of the prism


8 ft
15 ft
8 ft
15 ft
9 ft

Answers

Answer:

654 feet

Step-by-step explanation:

If two different data sets have the same mean, the one with a wider range gives a better representation of its data.

Answers

Answer:

if this is a true or false question the answer would be true

I just need help with the answer

I just need help with the answer

Answers

Answer:

\(\sin(\frac{19}{12}\pi)\\\\=\sin(\frac{15}{12}\pi+\frac{4}{12}\pi)\\\\=\sin(\frac{15}{12}\pi)\sin(\frac{1}{3}\pi)+\cos(\frac{15}{12}\pi)\cos(\frac{1}{3}\pi)\\\\=-\frac{\sqrt{2}}{2}\cdot\frac{\sqrt{3}}{2}-\frac{\sqrt{2}}{2}\cdot\frac{1}{2}\\\\=\frac{-\sqrt{6}-\sqrt{2}}{4}\\\\=-\frac{\sqrt{2}(\sqrt{3}+1)}{4}\)

A=2

B=3

I genuinely hope this helped you answer the question. Have a nice day.

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