Bella ordered Christmas presents online through Amazon Prime. She noticed 2 out
of every 5 orders was wrong. If she ordered 45 presents through Amazon, how
many can she expect to be wrong?

Answer:

4.75

Step-by-step explanation: given x=5 inches Z-score =1 let 'X' be the variable in normal distribution z=+1 when x=5 inches.

The mean length of the pavers produced at Patty's Pavers is 4.75 inches. Thus, the correct option is C.

A Z-score helps us to understand how far is the data from the mean. It is a measure of how many times the data is above or below the mean. It is given by the formula,

[tex]Z = \dfrac{X- \mu}{\sigma}[/tex]

Where Z is the Z-score,

X is the data point,

μ is the mean and σ is the standard variable.

The Z-score of +1 is,

(x-μ)/σ = 1

(5-μ)/σ = 1

5 - μ = σ

The Z-score of +2 is,

(5.25-μ)/σ = 2

(5.25 - μ)/σ = 2

5.25 - μ = 2σ

Substitute the value of the 'σ', therefore, standard deviation from the above,

5.25 - μ = 2(5 - μ)

5.25 - μ = 10 - 2μ

5.25 - 10 = -2μ + μ

μ = 4.75

Hence, the mean length of the pavers produced at Patty's Pavers is 4.75 inches. Thus, the correct option is C.

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Answer:

(X-6, y-3)

Step-by-step explanation:

From C to C’ you have to go three units down which is your Y (negative) and 6 units left which is your X (negative)

Answer:

9.77, i rounded so this should be right.

Answer:

I think it means that you can fit five chairs in one round table.

Step-by-step explanation:

I looked for the ratio or whatever it is called and I found on the graph that 2 round tables can fit 10 chairs and half of that would be 5:1.

Answer:-18x^5y^{6z+2}

Step-by-step explanation:

dont feel like explaining

Answer:

Step-by-step explanation:

Take any two points and find the slope.

(3,7) ; (9,5)

Slope =[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]

         [tex]=\frac{5-7}{9-3}\\\\=\frac{-2}{6}\\\\=\frac{-1}{3}[/tex]

Equation: y -y1 = m(x -x1)

[tex]y - 7 = \frac{-1}{3}(x - 3)\\\\y -7 =\frac{-1}{3}x -3*\frac{-1}{3}\\\\y -7=\frac{-1}{3}x+1\\\\y = \frac{-1}{3}x+1+7\\\\y=\frac{-1}{3}x+8[/tex]

Answer:

5

Step-by-step explanation:

59.95 ÷ 11.99=5

Answer:

It most likely be 55 but I'm not sure

Answer:8.75

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

x/4 = (2x/3) - 5. Solve for x

-5x/12 = -5

-5x = -60

x = 12

Answer:

with x being batches

1/2x

I hope this helps:

Answer:

[tex]y=\dfrac{x}{2}[/tex]

Answer:

63

Step-by-step explanation:

Use the properties of the exponent.

Answer:

63

Step-by-step explanation:

Answer:

1 over 27 i believe!!!!!

The amount of sand that can be put in each of the smaller sandboxes is 500 pounds.

Division is breaking a number up into an equal number of parts.

Given that, 3,000 pounds of sand is used to fill sandboxes. 1,000 pounds can fill the big sandbox, and the rest can fill 4 equal-sized smaller sandboxes.

Amount left after filling the larger box = 3000-1000 = 2000 pounds

To find the equal amount of sand to be filled in 4 smaller boxes, we will divide the amount left to the number of boxes.

= 2000/4

= 500

Hence, The amount of sand that can be put in each of the smaller sandboxes is 500 pounds.

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Answer:

irrational

Step-by-step explanation:

Answer:

irrational

Step-by-step explanation:

Hope it helps

Answer:  pie r^2 h

where pie is 3.143... , or 14

r- radius

h- height

Step-by-step explanation:

suppose let the cylinder height =3 and radius =4

volume of cylinder =pie*r^2*H

                                 = 3.143*4^2*3

                                 =150.864 m^3

Answer:

9 or 8

Step-by-step explanation:

Answer: I believe this is correct, i got 80 tickets

Step-by-step explanation:

I divided 2212.50 by the adult tickets, 7.50, and got 295. if the adults sold 295 tickets, then the students would have sold 80, because thats all that were left. I hope I helped

The number of student tickets the class sold is 200.

Let

x = number of student ticket sold

y = number of adult ticket sold

The junior class at Summerfield High School sold a total of 375 tickets for their spring festival. Therefore,

The junior class collected $2,212.50 in ticket sales. Therefore,

Combine the equation to get the number of student ticket sales.

x + y = 375

4.50x + 7.50y = 2212.50

Multiply equation(i) by 4.50x

4.50x + 4.50y = 1687.5

4.50x + 7.50y = 2212.50

3y = 525

y = 525 / 3

y = 175

x + y = 375

x = 375 - 175

x = 200

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Answer: The scale factor is 2

(2 as a fraction is 2/1)

Answer:The scale factor is 2

Step-by-step explanation:

Answer:

i highly believe it is c

Step-by-step explanation:

i multiplied them

Answer:

C. 1,100

Step-by-step explanation:

1.1x1,000=1,100

all you have to do is add the amount of zeros that there are at the end of the numbers in the equation. example 10x10, is 100. it has 2 zeros at the end because thats how many both numbers have combined. so, since 1,000 has 3 zeros, you add those to the end of 1.1. since 1.1 is a decimal, addind 3 zeros would make it 1,100.

Answer:

3.5

Step-by-step explanation:

the two shapes are simular so divide 16 by 4 which gives you 4 then use this to divide 14 by 4 to get 3.5

Answer:

30

Step-by-step explanation:

274 - 4 = 270

270 ÷ 9 = 30

Answer:

i am think but i am sure it is a3

Step-by-step explanation:

-7 n -3

kncnrjjijnxebxub I needed 20 characters