Your aunt has baked 80 cookies, and she gave you 28 to take home with you. What percent of the cookies did she give to you? What percent of the cookies did she keep?

Answer:

x=2

Step-by-step explanation:

9

−

3

=

1

+

{\color{#c92786}{9-3x}}=1+x

9−3x=1+x

−

3

+

9

=

1

+

Answer:

2

Step-by-step explanation:

9-3x=1+x

9-3x-x=1

9-4x=1

4x=9-1

4x=8

x=8/4

x=2

Answer:

553

Step-by-step explanation:

Answer:

The best point estimate of the population proportion p is 0.0251.

The 99​% confidence interval for the proportion of adverse reactions is (0.0191, 0.0311).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

In clinical​ trials, among 4547 patients treated with the​ drug, 114 developed the adverse reaction of nausea.

This means that [tex]n = 4547, \pi = \frac{114}{4547} = 0.0251[/tex]

The best point estimate of the population proportion p is 0.0251.

99% confidence level

So [tex]\alpha = 0.01[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.575[/tex].

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.0251 - 2.575\sqrt{\frac{0.0251*0.9749}{4547}} = 0.0191[/tex]

The upper limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.0251 + 2.575\sqrt{\frac{0.0251*0.9749}{4547}} = 0.0311[/tex]

The 99​% confidence interval for the proportion of adverse reactions is (0.0191, 0.0311).

Answer:

The answer is 1

Step-by-step explanation:

z-z+x-y

(-5)-(-5)+(4)-(3)

-5+5+4-3

4-3

1

Answer:

2 liters

Step-by-step explanation:

There are 5 beakers in total, in which David adds 0.4 liters into each of them. To solve, multiply 5 with 0.4: 5 x 0.4 = 2.0 2.0 or 2 liters is your answer.

Answer:  2 liters

Step-by-step explanation:  There are 5 beakers in total, in which David adds 0.4 liters into each of them.  To solve, multiply 5 with 0.4: 5 x 0.4 = 2.0  

2.0 or 2 liters is your answer.

Answer: 6. d

7. b

8. d

9. c

Step-by-step explanation:

Answer:

1 year= 12 months

1 months rent=1783

1783x12=21396

15 years = 180 months

the equation would be

1783x180=320940

or

21396x15= 320940

Answer:

the x would equal 25 as 5x2 is 10 + 16x25 - 84 is 0.

Step-by-step explanation:

Answer:

2.8, –6

Step-by-step explanation:

The equation is already instandard form. Use the quadraticformula.5x2+16x−84=0x=−b±b2−4ac√2aSubstitute 5 for a, 16 for b,and −84 for c. Solve to getx=2.  8 or x=−  6.

Answer:

a = 15b

Step-by-step explanation:

It's given in the question that Alice has 15 times as many crayons as Bryan.

Let the number of crayons with Bryan = b

And the number of crayons with Alice = a

Therefore, equation representing the number of crayons with Alice will be,

a = 15b

Answer:

$1200 gross pay

Step-by-step explanation:

if you worked 40 hours normally and had 10 hours over time, that equation for the gross pay would be X = 20(40) + 30(10)

X = 20(40) + 30(10)

X = 800 + 300

X = 1200

Answer:

∠1 = 150°

Step-by-step explanation:

supplementary angle to angle 1 = 180° - 100° - 50° = 30°

∠1 = 180° - 30° = 150°

Answer:

1243.4 [tex]cm^{3}[/tex]

Step-by-step explanation:

Answer:

6x + 20 + 4x + 80 - 2x=180

6x + 4x - 2x= 180 - 80 - 20

8x = 80

x = 10

The value of x in the triangle is 10, the value of each angle are; 80, 40 , 60 respectively

The total angle can be added as

note that the total angle in the triangle is 180

[tex]6x + 20 + 4x + 80 - 2x=180[/tex]

[tex]6x + 4x - 2x= 180 - 80 - 20[/tex]

[tex]8x = 80x = 10[/tex]

Then we can know the angles as ;

[tex]6x + 20=(6*10) +20 =80\\4x = 4*10 = 40\\80 - 2x = 80 - (2*10) = 60[/tex]

Learn more about triangle at

https://brainly.com/question/17335144

#SPJ2

Answer:

Uh what are you saying?

Step-by-step explanation:

Thanks for the points btw

Answer:

I think the answer is meant to be 32°

Step-by-step explanation:

I took 0.55 which is the angle in radians, multiplied it by the value of 180, and then divided by π

Answer:

slope:2

Step-by-step explanation:

Slope is rise/run, or change in y/change in x.

With that being said, we only need two points to solve this.

Let's take the points (0,7) and (1,9)

The formula for finding the slope from two points is m=(y2-y1)/(x2-x1).

M is the slope.

y2 would be the y-value of the second point,9. y1 would be the y-value of the first point, 7.

x2 would be the x-value of the second point, 1. x1 would be the x-value of the first point, 0.

Plugging those values in to the formula, we get m=(9-7)/(1-0)

Simplifying, we get m=2/1, which is m=2.

Answer:

9) 5

10) 5x+2

11) -1

12) -x+6

Answer:

7.632169 units

Step-by-step explanation:

7.6 is radius Step-by-step explanation:

Answer:

An isosceles triangle.

Step-by-step explanation:

Answer:

right isosceles

Step-by-step explanation:

Answer:

✔ (3, –4)

✔ 35

Step-by-step explanation:

Answer:

volume = 25.1 m³

Step-by-step explanation:

volume = 1/3πr²h = 1/3(3.14)(2²)(6) = 25.1 m³

Answer:

120$

Step-by-step explanation:

as we know the formula to calculate i is (ptr)/100

so i =(1000×6×2)/100

=(12000)/100

=120$

Answer:

G. y = -[tex]\frac{1}{9}[/tex](x - 2)² -3

Step-by-step explanation:

There's this website called Desmos it has graphing calculators that will help you on these type of questions. This is not a random website so please trust me.

All we need to do is get the ? by itself in both equations.

-4 - ? = - 7

-? = -7 + 4

-? = -3

? = 3

? - ( -3) = 5

? + 3 = 5

? = 5 - 3

? = 2

Answer:

First ?: 3

Second ?: 2

Step-by-step explanation:

Do the inverse operation of what is shown to get the answer.

First ?:

-4 - ? = -7

-7 + 4 = -?

-3 = -?

3 = ?

Second ?:

? + 3 = 5 (Two negatives in a row make a positive.)

5 - 3 = ?

2 = ?

I hope this helps! \(★ω★)/

Step-by-step explanation:

Alternate and corresponding angles.

Answer:

corresponding angles

Step-by-step explanation:

it has six points

it is a corresponding angles

Answer:

A and C are true.

Step-by-step explanation:

-16 = -16 that's just a given, they are the same number. And -47 is less than -43, since -43 would be a higher number considering it's in the negatives.