The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $8 each and will sell 900 tickets. There is one $3,000 grand prize, two $500 second prizes, and ten $10 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent.

Answer:

The number is:

Step-by-step explanation:

Let 'x' be the number

Given that 4.6 plus 1.9 times a number equals the sum of the number and 94.6.

so the equation becomes

[tex]4.9+1.9x=x+94.6[/tex]

[tex]1.9x-x=94.6-4.9[/tex]

[tex]0.9x=89.7[/tex]

[tex]\mathrm{Multiply\:both\:sides\:by\:}10[/tex]

[tex]0.9x\cdot \:10=89.7\cdot \:10[/tex]

[tex]9x=897[/tex]

[tex]\mathrm{Divide\:both\:sides\:by\:}9[/tex]

[tex]\frac{9x}{9}=\frac{897}{9}[/tex]

[tex]x=\frac{299}{3}[/tex]

[tex]x=99.67[/tex]

Therefore, the number is:

Answer:

89

Step-by-step explanation:

8, 13,

8+13= 21

13+21 =34

21+34=55

34+55=89

Answer:

$7.24

Step-by-step explanation:

it just is

Answer:

Step-by-step explanation:

angle A + angle B + angle C = 180° [Sum of all angles of a triangle is 180°]

=> 2x+1 + x+15 + x = 180°

=> 4x + 16 = 180°

=> 4x = 180° - 16°

=> 4x = 164°

=> x = ([tex]\frac{164}{4}[/tex])°

=> x = 41°

[tex]\\[/tex]

angle A = 2x+1 = 2×41 +1 = 82 + 1

=> 83°

angle B = x+15 = 41+15

=> 56°

angle C = x

=> 41°

[tex]\\\\\\[/tex]

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Answer:

45 cm^2

Step-by-step explanation:

Dividing the shape into the two separate components of a square and a triangle makes it easier.

The square area is found by multiplying the side by the side, 6cm*6cm which gives us 36cm^2.

Then the triangle the height is 3cm and the base is 6cm. Using the formula 1/2*base*height.

Which would be 1/2*6*3=9cm^2.

Adding the two, 9+36= 45cm^2.

Answer:

$12

Step-by-step explanation:

.......12...........

Answer:

x=-13/4

Step-by-step explanation:

hope this helps :)

Answer:

x = 1

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    (x-3)+x+22-(17)=0  

Step by step solution :

STEP  1:

Pulling out like terms

1.1     Pull out like factors :

  2x + 2  =   2 • (x + 1)  

Equation at the end of step  1:

STEP  2:

Equations which are never true:

2.1      Solve :    2   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

2.2      Solve  :    x+1 = 0  

Subtract  1  from both sides of the equation :  

                     x = 1

One Solution Was Made :

x = 1

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Answer:

me

Step-by-step explanation:

Answer:

st math

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

21/3=7

Answer:

7 dollars/$7

Step-by-step explanation:

21 divided by 3 = 7

$7 to send 1 package.

Answer:

$ 0.75 per game

Step-by-step explanation:

Answer:

MAKE BRAINLIEST:

$0.75

Step-by-step explanation:

Answer:

This is a bit confusing for me but here we go.

1x110

10x11 and

i don't really know the third

Step-by-step explanation:

Answer:

Graph 2

Step-by-step explanation:

See image attached. Hope this helps.

The second graph shown the polar curve at r = 7.

Given ,

Equation of polar curve = r = 2 + 5sin(θ)

We have to find ,

Which of following graph show polar curve ,

At  r = 2 + 5sin(θ)

The area between two curves in the polar coordinate system, first find the points of intersection, then subtract the corresponding areas.

First graph ;  r = 2 + 5sin(θ)

Where ,

[tex]\theta = 0[/tex]

r = 2 + 5sin0

r = 2 + 5 (0)

r = 2

Second graph : r = 2 + 5sin(θ)

Where

[tex]\theta = \frac{\pi }{2}[/tex]

Then,

r = 2 + sin[tex]\frac{\pi }{2}[/tex]

r = 2 +5 ( 1 )

r = 2+5

r = 7

Third graph ;  r = 2 + 5sin(θ)

where

[tex]\theta = \pi[/tex]

Then,

r = 2 + 5sin[tex]\pi[/tex]

r = 2 + 5(0)

r = 2

Fourth graph ; r = 2 + 5sin(θ)

Where

r = 2 + 5sin[tex]\frac{3\pi }{2}[/tex]

r = 2 + 5 (-1)

r = -3

Fifth graph ; r = 2 + 5sin(θ)

Where

[tex]\theta = 2\pi[/tex]

r = 2 + 5sin(2π)

r = 2+ 5 (0)

r = 2

Comparing all the value of the graph ,the second graph shown the polar curve at r = 7.

Hence, The second graph shown the polar curve at r = 7.

For more information about Polar curves click the link given below.

https://brainly.com/question/1094340

Answer: 83

Step-by-step explanation:

(88+92+87+x)/4 = 90

(277+x)/4 = 90

x+ 277 = 360

x = 83

88+92+87+93 = 360 / 4 = 90

You'll probably need to get 93 on your fourth grade

Answer:

21 monkeys

Work:

The ratio is 3:7 so 3*3=9 lions 7*3=21 monkeys

9+21=30

Answer:

75

Step-by-step explanation:

Median means the middle number in a sequence.

Answer:

Rounded: 205

Orignal:205.269230769...

Step-by-step explanation:

Divide 5337 by 26

Answer: at the end of the game u have 138762 points

Step-by-step explanation: new high score

Answer:

Number of items sold, discrete; time spent at desk, continuous

Step-by-step explanation:

The random variables from the survey is number of items sold, discrete; time spent at desk, continuous

A selection that is chosen randomly (purely by chance, with no predictability). Every member of the population being studied should have an equal chance of being selected.

According to the question

The supervisor at an office randomly selected 45 employees and observed their work habits.

She recorded

i > number of items sold  

ii > total time the employees spent at their desk  

As per observation

Number of items sold = discrete

as it is not possible to sell items in a continuous manner

But

time spent at desk = continuous

as every employee spend time at there desk

Hence, the random variables from the survey is number of items sold, discrete; time spent at desk, continuous

To know more about random selection here:

https://brainly.com/question/14728233

#SPJ2

Answer:

60 cupcakes

Step-by-step explanation:

1/4 of 80 is 20

20+20+20+20=80

Answer:

Step-by-step explanation:

1. Zero point six.

2. In 0.6 the 6 is in tenths place, so place 6 over 10 to create the equivalent fraction 6/10, and 0.60 is 60/100.

3. We can use the same diagram to represent 0.6 and 0.60 because they are equivalent, 0.6 is 60 percent cause the 6 is in the tenths place, 0.60 is also 60 percenr take the zero away and keep the decimal point which is  .60 the 6 is still in tenths place.

Answer:

teo is 8 and richard is 28

Step-by-step explanation:

Answer: -1.13

Step-by-step explanation:

Answer:

It has two terms.

Step-by-step explanation:

Answer:

5.01%

Step-by-step explanation:

In order to calculate a sequence of events you need to multiply the probability of each event happening with one another in decimal form. In this scenario, the probability of James bowling a strike is 55% meaning that the probability of James NOT bowling a strike is 45%. We want to know the probability of James NOT bowling a strike for 3 attempts and then bowling a strike on his fourth attempt. We first turn these probabilities into decimal form by dividing them by 100. And then multiply...

55 / 100 = 0.55

45 / 100 = 0.45

0.45 * 0.45 * 0.45 * 0.55 = 0.05011875

Multiply by 100 to get percentage.

0.05011875 * 100 = 5.01%

Answer:

-78.12

Step-by-step explanation:

a 12.4x-6.3= -78.12

mark as brainlyliest

Answer:

-78.12

Step-by-step explanation:

Answer:

It's 300,000

Step-by-step explanation:

if you round (25)0,000 off you get 300000, so you don't have to worry about the other digits too much

Answer: right there

Step-by-step explanation:

Find area of semi circle, and then rectangle.(rectangle is 20x14). 20xdiameter.