This my lil sis work help her

X=38

Hope I helped :]

 The first mistake in Maria's solution is seen in between Step 1 and Step 2

Given that Maria solved math homework problem incorrectly

the steps of the procedure followed by Maria is given as follows

Given 7(3x + 4 + x) - 4x + 8

Step 1: 7(4x + 4) - 4x + 8

Step 2: 28x + 4- 4x + 8

Step 3: 28x - 4x + 4 + 8

Step 4: 24x + 12

According to the given expression we can write the solution in the following steps

[tex]\rm Given \; \; 7(3x +4+x) -4x +8 \\ Step\; 1 :\; \; 7(4x +4) -4x +8 \\Step\; 2 : \; \; 28x+28 -4x +8 \\Step \; 3 :\; \; 24x + 28 + 8 \\Step\; 4 : \; \; 24x + 36[/tex]

On comparing with given steps of the question we can clearly say that the first mistake in Maria's solution is seen in between Step 1 and Step 2

For more information please refer to the link given below

https://brainly.com/question/19126818

Answer:

I think its B but im not sure

Step-by-step explanation:

Answer:

0.55x10= 5.50

Step-by-step explanation:

9514 1404 393

Answer:

  F(x) = (9/5)x -459.67

Step-by-step explanation:

F(C(x)) = 9/5(x -273.15) +32

F(C(x)) = (9/5)x -459.67 . . . . . simplify

Answer:

98%

Step-by-step explanation:

Answer:

Samia Suluhu HassanStep-by-step explanation:

Answer:

The current president of the United Republic of Tanzania is

Her excellency Mama Samia Suluhu Hassan.

Step-by-step explanation:

Respect to this woman .

She is from the beautiful island of Zanzibar.

UR of Tanzania is a union government of Tanganyika and Zanzibar .

Currently the president ofZanzibar is from Zanzibar islands and the president of Tanzania also is from Zanzibar islands

Respectt to Zanzibar islands.

Answer:

Think its B. but if not it should be E.

Step-by-step explanation:

Answer:

$15.20

Step-by-step explanation:

When you are asked to find the mean, you would add up the costs of the shirts and then divide them by however many shirts she got.

56.80 + 19.20 = 76

76 ÷ 5 = 15.20

Thus the mean cost is $15.20

Hope this helped!

Answer:

The best point estimate for a confidence interval estimating the population μ is 16 ounces.

The 98 percent confidence interval for the population mean μ is between 15.21 ounces and 16.79 ounces.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The best point estimate for a confidence interval estimating the population μ is

The sample mean, so 16 ounces.

T interval

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 102 - 1 = 101

98% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 101 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.98}{2} = 0.99[/tex]. So we have T = 2.36

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 2.36\frac{3.4}{\sqrt{102}} = 0.79[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 16 - 0.79 = 15.21 ounces

The upper end of the interval is the sample mean added to M. So it is 16 + 0.79 = 16.79 ounces

The 98 percent confidence interval for the population mean μ is between 15.21 ounces and 16.79 ounces.

Answer:

the answer is 6 :))))))))0

Step-by-step explanation:

Answer:

6 is hoing to be your answer

Answer:

6in

Step-by-step explanation:

Answer:

Preston 48.20 seconds.

Step-by-step explanation:

Look at the times for all 4 of them.

From the information given, we can find the first to the last person to the bus. Whoever came to the bus in less seconds is the first person to reach to the bus and whoever came to the bus in more seconds is the last person to reach to the bus.

1 ---> Amber 40.02 seconds.

2 ---> Sarah 48.02 seconds.

3 ---> Preston 48.20 seconds.

4 ---> Josh 52 seconds.

I hope this helps and stay safe, happy, and healthy. Also I would appreciate if you give me the brainlist or not, thank you :) !!

Answer:

B. 25

Step-by-step explanation:

The computation of the no of adult tickets sold is shown below;

let us assume the number of child ticket be x

And, for adult ticket be y

Now as per the questions

x + y = 100

7.50x + 10y = 812.50

Multiply by 7.50x in equation 1

7.50x + 7.50y = 750

7.50x + 10y = 812.50

-2.50y = -62.50

y = 25

Hence, the number of adult ticket sold is 25

Answer:

Multiply the second equation by 2

Step-by-step explanation:

Given

[tex]4x + 3y = 8[/tex]

[tex]2x + 5y =12[/tex]

Required

Get matching coefficient for elimination

[tex]4x + 3y = 8[/tex]

[tex]2x + 5y =12[/tex]

The coefficient of x in both expressions are factors.

So, we can multiply the second equation by 2 to get the coefficient of x in the first.

i.e.

[tex]2 * (2x + 5y = 12)[/tex]

[tex]4x + 10y = 24[/tex]

So, the system becomes:

[tex]4x + 3y = 8[/tex]

[tex]4x + 10y = 24[/tex]

Now, x can be eliminated

Answer:

5 units away

Step-by-step explanation:

Answer:

125 is 62.5% of 200, hope this helps :)

Answer:

Je ne sais pas sur quoi vous avez besoin d'aide, pourriez-vous préciser pour que je puisse vous aider ??

Step-by-step explanation:

Answer:

Step-by-step explanation:

to do lo so ko gogfr org reg  grgrwe wffffqwf qw32767

Answer:

8 bowls

Step-by-step explanation:

10=40/4

1 1/4=5/4

40/4 divided by 5/4=160/20

160/20=8/1

Answer: the answer is 8

Step-by-step explanation:

Answer

I think they are things that you have to follow in order to work with the exponents

Answer:

||| First row: 11 -20 23 ||| Second row: -21 5 -24 ||| Third row: 6 9 -14 |||

Step-by-step explanation:

I wish I could explain it better, but all I did was plug it into matrix A on:

https://atozmath.com/matrix.aspx?q=minor

I pressed "find" without changing any of the settings, and scrolled down until I saw what was in the attached screenshot.

Each of the rows correspond to the first, second, and third answers, as you can see.

I hope this helps!

Answer:

4 and -5

Step-by-step explanation:

Answer:

4 and -5

Step-by-step explanation:

Coefficients are numbers that are multiplied by a variable.

The term 4ab has 4 as the coefficient and a and b as the variables.

The term -5b has -5 as the coefficient and b as the variable.

Answer:

A. [tex] \frac{2}{5} \times 4 [/tex]

Step-by-step explanation:

Given:

[tex] \frac{2}{5} \div \frac{1}{4} [/tex]

To find the quotient, we would multiply the first fraction (⅖) by the reciprocal of the second fraction (reciprocal of ¼ = 4).

This, we would have:

[tex] \frac{2}{5} \times 4 [/tex]

[tex] = \frac{8}{5} [/tex]

Answer:

A) multiply 2/5 by 4

Step-by-step explanation:

I think this is edge I literally just did this

pls give 5 star brainly and heart :)))

Answer:

cross ❌ multiply

6x-1=2

6x=2+1

6x=3

divide both sides by 6

x=1/2

Answer:

4.5 ft

Step-by-step explanation:

Let length = 2x + 3

Let width = x

Area = 54 ft2

length × width = Area

x(2x + 3) = 54

2x2 + 3x = 54

2x2 + 3x - 54 = 0

(2x - 9)(x + 6) = 0

x = 9/2    and    x = -6

x = 4.5    and    x = -6

We accept x = 4.5 because length cannot be a negative value.  Substituting this value into the dimensions:

width = 4.5 ft

length = 2(4.5) + 3 = 9 + 3 = 12 ft

Find the stationary points of the function (where the derivative is zero):

f(x) = ln(x ² + 7x + 14)

→   f '(x) = (2x + 7) / (x ² + 7x + 14)

The denominator is always positive, since

x ² + 7x + 14 = (x + 7/2)² + 7/4 ≥ 7/4 > 0

so f '(x) = 0 when

2x + 7 = 0   →   x = -7/2

at which point f (-7/2) = ln(203/4) ≈ 3.927.

Also check the endpoints of the given domain:

f (-4) = ln(2) ≈ 0.693

f (1) = ln(22) ≈ 3.091

Then on the interval [-4, 1], we have max(f ) = ln(203/4) and min(f ) = ln(2).

Answer:

what they currently going over?

Answer:

1300

Step-by-step explanation:

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 1300 Is the answer! I hope this helped

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer:

Step-by-step explanation:

a) (3,5)

b) 3 units

c) 10 units

Hope that helps!