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otez555 [7]
1 year ago
15

The signs show the costs of different games at a math festival. How much would it cost n people to play Decimal Decisions and Ra

tio Rage?

Mathematics
1 answer:
Oduvanchick [21]1 year ago
7 0

Answer:

$(21.70 - \frac{3n}{4})

Step-by-step explanation:

See the sign attached to the question.

The sign shows the costs of different games at a math festival.

The Decimal Decision game costs $(12.70 - n + 9) for n people to play.

And, The Ratio Rage game costs $\frac{n}{4} for n peoples to play.

Therefore, it will cost $(21.70 - n + \frac{n}{4}) = (21.70 - \frac{3n}{4}) Dollars. (Answer)

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Step-by-step explanation:

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What is the slope of a line perpendicular to the line whose equation is 3x-12y=2163x−12y=216.
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Answer:

Deleted account

Step-by-step explanation:

Here 3x-12y-216=0

Reducing into slope intercept form

-12y= -3x + 216

12y = 3x - 216

Which is in the form of, y = mx + c

Slope (m) = 3

Step-by-step explanation:

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2 years ago
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Tarush is a landscape architect. For his first public project he is asked to create a small scale drawing of a garden to be plac
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See the attached figure 2.

Step-by-step explanation:

The question is as shown at the attached figure 1.

given: The garden is a right triangle with base 10 m and height 15 m.

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So the scale factor is 1 unit = 2 m

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So, the garden on the grid will be a right triangle with base 5 units  and height 7.5 units.

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What number should be placed in the spot presently filled with the X? Finished Product A 1 2 3 4 Gross Requirements (i.e. demand
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Answer:

Below mentioned is the answer.

Step-by-step explanation:    

Finished Product A                   1 2 3 4

Gross Requirements                        20 20 50 30

Scheduled Receipts                    25  

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3 0
2 years ago
There are two misshapen coins in a box; their probabilities for landing on heads when they are flipped are, respectively, .4 and
Leokris [45]

Answer:

E(X) = 6.0706

Step-by-step explanation:

1) Define notation

X = random variable who represents the number of heads in the 10 first tosses

Y = random variable who represents the number of heads in range within toss number 4 to toss number 10

And we can define the following events

a= The first coin has been selected

b= The second coin has been selected

c= represent that we have 2 Heads within the first two tosses

2) Formulas to apply

We need to find E(X|c) = ?

If we use the total law of probability we can find E(Y)

E(Y) = E(Y|a) P(a|c) + E(Y|b)P(b|c) ....(1)

Finding P(a|c) and using the Bayes rule we have:

P(a|c) = P(c|a) P(a) / P(c) ...(2)

Replacing P(c) using the total law of probability:

P(a|c) = [P(c|a) P(a)] /[P(c|a) P(a) + P(c|b) P(b)] ... (3)

We can find the probabilities required

P(a) = P(b) = 0.5

P(c|a) = (3C2) (0.4^2) (0.6) = 0.288

P(c|b) = (3C2)(0.7^2) (0.3) = 0.441

Replacing the values into P(a|c) we got

P(a|c) = (0.288 x 0.5) /(0.288x 0.5 + 0.441x0.5) = 0.144/ 0.3645 = 0.39506

Since P(a|c) + P(b|c) = 1. With this we can find P(b|c) = 1 - P(a|c) = 1-0.39506 = 0.60494

After this we can find the expected values

E(Y|a) = 7x 0.4 = 2.8

E(Y|b) = 7x 0.7 = 4.9

Finally replacing the values into equation (1) we got

E(Y|c) = 2.8x 0.39506 + 4.9x0.60494 = 4.0706

And finally :

E(X|c) = 2+ E(Y|c) = 2+ 4.0706 = 6.0706

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