the ratio of students who walked home from school to the students who ride the bus home is 2.7. The number of the bus riders is how many times the number of students who walk home?​

Answer:

0.0018

Step-by-step explanation:

P(z>2.88)=1-0.9980= 0.0018

Answer:

c

Step-by-step explanation:

Answer:

(a) 0.40

(b) 0.049

(c) [tex]\bar p\sim N(0.40,0.049^{2})[/tex]

(d) Explained below

Step-by-step explanation:

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

 [tex]E(\bar p)=p[/tex]

The standard deviation of this sampling distribution of sample proportion is:

 [tex]SE(\bar p)=\sqrt{\frac{p(1-p)}{n}}[/tex]

Given:

n = 100

p = 0.40

As n = 100 > 30 the Central limit theorem is applicable.

(a)

Compute the expected value of [tex]\bar p[/tex] as follows:

[tex]E(\bar p)=p=0.40[/tex]

The expected value of [tex]\bar p[/tex] is 0.40.

(b)

Compute the standard error of [tex]\bar p[/tex] as follows:

[tex]SE(\bar p)=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.40(1-0.40)}{100}}=0.049[/tex]

The standard error of [tex]\bar p[/tex] is 0.049.

(c)

The sampling distribution of [tex]\bar p[/tex] is:

[tex]\bar p\sim N(0.40,0.049^{2})[/tex]

(d)

The sampling distribution of p show that as the sample size is increasing the distribution is approximated by the normal distribution.

Let the cost of the less expensive comic book be x .

Then :-

[tex]1284 - 11x = x[/tex]

Using this equation , we can find the cost of the less expensive comic book .

Price of the less expensive book :-

[tex]1284 - 11x = x[/tex]

[tex]11x + x = 1284[/tex]

[tex]12x = 1284[/tex]

[tex]x = \frac{1284}{12} [/tex]

[tex]x = 107[/tex]

Cost of the less expensive book is 107 .

Therefore , the epice of the less expensive book = $ 107 .

Cost of the more expensive book = 11x

Which means :-

[tex]1284 - x = 11x[/tex]

[tex]11x + x = 1284[/tex]

[tex]12x = 1284[/tex]

[tex]x = 107[/tex]

[tex]11x = 11 \times 107[/tex]

[tex] = 1177[/tex]

Therefore , the price of the more expensive book = $ 1177 .

Answer:

From the given figure, we can see that

∠LON = ∠LOM + ∠MON

replacing the variables with the given values

77 = 9x + 44 + 6x + 3

77 = 15x + 47

15x = 30

x = 2

Finding ∠MON:

we are given that ∠MON = 6x +3

now that we know the values of x,

∠MON = 6(2) + 3

∠MON  = 12 + 3

∠MON = 15°

Answer:

O-O is this highschool stuff sorry couldnt help

Step-by-step explanation:

9514 1404 393

Answer:

  -2, 1, 4, 7

Step-by-step explanation:

Start with n=1. Put the value where n is in the expression and do the arithmetic.

  a1 = 3·1 -5 = -2

  a2 = 3·2 -5 = 1

  a3 = 3·3 -5 = 4

  a4 = 3·4 -5 = 7

__

You may notice that each term is 3 more than the previous one.

Answer:

The answer is C : $115.54

Step-by-step explanation:

If you add every single items cost together, the total is $109.00

60 + 14 = 74

10 + 25 = 35

74 + 35 = $109

You then caculate what 6% percent of 109 is = $6.54

After that, you add the total and percent together

$6.54 + $109.00  = $115.54

Answer:answer is c

Step-by-step explanation:I took edge 2022

Answer:  3/11

Step-by-step explanation:

you must do cross canceling to simplify the expression

then just do multiplication from left to right

7/11 times 3/7 the 7 can be crossed out and turned into a 1

then do 1 times 3 for the numerator then 11 times 1 for the denominator and get you answer 3/11

Answer:

The first graph is the correct answer.

Step-by-step explanation:

I hope this helps.

Answer:

1st one

Step-by-step explanation:

Answer:

1st one

Step-by-step explanation:

Answer:

30b+10v

Step-by-step explanation:

Step-by-step explanation:

for the first one -6/3=3/(-6)

is false

The left side  − 2  does not equal to the right side  − 0.5 , which means that the given statement is false.

False

-8*9=9*(-8)

is true

The left side  − 72  is equal to the right side  − 72 , which means that the given statement is always true.

True

Answer:

NOM and POR

(so so sorry if it's wrong, I tried my best to help you but I had to look up an image of a angle like that but i hope you have a wonderful day, sorry again if i am wrong, i hope i help in a way, in i did not, sorry)

Answer:

WHAT THE FAWK SRE YOU SAYING AND WRITING

Answer:

truste me dont!

Step-by-step explanation:

Answer:

0.36

Step-by-step explanation:

0.45 x 0.80

= 0.36

Answer:

Step-by-step explanation:

-15x = x = 0/-15

x = 0

Step-by-step explanation:

-15x=0

-15x/-15=0/-15

x=0

-15(0)=0

Answer:

450 Is the maximum height.

Step-by-step explanation:

Use x=-b/(2a) to get your answer.

Answer:

87.50

Step-by-step explanation

Answer:

1.732

Step-by-step explanation:

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

Analysing the question:

We are given that the ratio between the blue and red color is 8 : 3

as long as the volumes of the colours added simplify to 8 : 3 , the color will be Perfect Purple

Lada's Solution:

Lada mixed 24 mL of blue water with 9 mL of red water

we will try to simplify this ratio:

24:9 = 24 / 9

8 / 3

8 : 3

Hence, the ratio of the colours in Lada's mixture is correct. So, Lada will get perfect purple water

Andre's Solution:

Andre mixed 16mL of Blue water with 9 mL of red water

we will try to simplify this ratio:

16 : 9 = 16 / 9

THIS RATIO CANNOT BE SIMPLIFIED

Hence, the ratio of blue and red color in Andre's mixture is 16 : 9

but the ratio for a perfect purple color is 8 : 3

Since the ratio in Andre's mixture is incorrect, she will NOT get the perfect purple colour

Answer:

Lada will get a color mixture that is the same shade as Perfect Purple Water.

Step-by-step explanation:

Proportions

The mix for Perfect Purple Water contains 8 ml of blue water with 3 ml of red water.

The exact proportion of both ingredients is, blue to red:

[tex]\displaystyle \frac{8}{3}[/tex]

Lada mixes 24 ml of blue water with 9 ml of red water. The proportion is:

[tex]\displaystyle \frac{24}{9}[/tex]

Simplifying by 3:

[tex]\displaystyle \frac{8}{3}[/tex]

The proportion obtained by Lada is the same shade as Perfect Purple Water.

Andre mixes 16 ml of blue water with 9 ml of red water, his proportion is:

[tex]\displaystyle \frac{16}{9}[/tex]

This fraction cannot be reduced and its result is not exactly the same as the perfect required proportion.

Thus, Lada will get a color mixture that is the same shade as Perfect Purple Water.

Answer:

[tex]x = 24[/tex]

24 is less than 35

Step-by-step explanation:

Given

Jacob: 2000x + 3000

Carlos: 3800x - 40000

Solving (a):

To solve (a), we need to equate both expressions;

[tex]3800x - 40000 = 2000x + 3000[/tex]

Collect Like Terms

[tex]3800x - 2000x = 40000 + 3000[/tex]

[tex]1800x = 43000[/tex]

Solve for x

[tex]x = 43000/1800[/tex]

[tex]x = 24[/tex] --- Approximated

Solving (b);

The manager's prediction is 35 hours.

And the actual hours is 24.

By comparison;

24 is less than 35

9514 1404 393

Answer:

  your marked choice is correct: x = e

Step-by-step explanation:

For the line to go through the origin, the ratio of ln(x) to x at the point must equal the slope at the point.

The slope of ln(x) is 1/x, so we require ...

  ln(x)/x = 1/x

  ln(x) = 1 . . . . . . multiply by x

  x = e . . . . . . . . take antilogs

Answer:

ok

Step-by-step explanation:

Answer:

(4, 7)

Step-by-step explanation:

Given that:

Midpoint of AB = M(3, 3)

Coordinate of A = (2, - 1)

Let coordinates of B = (x, y)

Recall :

Midpoint of AB = [(Ax + Bx) / 2, (Ay + By) / 2]

Mx = (Ax + Bx) / 2

My = (Ay + By) / 2

Mx = 3

Mx = (Ax + Bx) / 2

3 = (2 + x) / 2

2*3 = 2 + x

6 = 2 + x

6 - 2 = x

4 = x

My = 3

My = (Ay + By) / 2

3 = (-1 + y) / 2

2*3 = - 1 + y

6 = - 1 + y

6 + 1 = y

7 = y

Hence,

B = (4, 7)

The x-values could be 1,3,1,3 because this would eliminate it fom being a function.

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Answer:

q = -12

Step-by-step explanation:

-9 - 11 can be written as -9 + (-11)

-20 = 2q + 4

Subtract 4 from both sides.

-24 = 2q

Divide both sides by 2

-12 = q

Hope I helped :)

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