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3 years ago

BRAINLIEST! :3 How much is a $15 tip with the meal costing $18?

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

4 0

With the meal costing $18 and the tip being $15 the total will be $33

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. Imagine a game of 3 players where exactly one player wins in the end and all players have equal chances of being the winner. T

lbvjy [14]

Answer:

5/9

Step-by-step explanation:

Number of players = 3

number of times game is repeated = 4

P( any person wins a game ) = 1/3

P ( any person does not win a game ) = 1 - 1/3 = 2/3

P ( any person wins no game in 4 attempts ) = ( 2/3 )^4 = 16/81

<em>Note : each player has equal chance of winning </em>

<u>Find the probability that there is at least one person who wins no games </u>

lets represent the probability of each player not wining a game with alphabet A

A1 = player 1 wins no game

A2 = player 2 wins no game

A3 = players 3 wins no game

Applying the inclusion-exclusion formula

where

P( A1 ∩ A2 ) = P( A1 wins all games )

P ( A1 wins all games in 4 attempts ) = ( 1/3 )^4 = 1/81

P( A1 ∩ A2 ∩ A3 ) = P ( no players wins any game in 4 attempts ) = 0

Hence

P( A1 ∪ A2 U A3 ) = 16/81 + 16/81 + 16/81 - 1/81 - 1/81 - 1/81 - 0 = 5/9

6 0

2 years ago

Mary takes 9 grapes from rohin and then decides to give 4 back draw a model for the subtraction problem using integer chips

kaheart [24]

That should be correct

3 0

3 years ago

How could you use coordinate geometry to prove that BC AD?

leva [86]

Answer:

3) Prove the lengths are the same.

Step-by-step explanation:

Congruent is a measure of the lengths of the sides not the slopes.

4 0

3 years ago

A bag contains 4 blue marbles, 2 yellow marbles, and 6 orange marbles. What is the probability of picking an orange marble and t

ikadub [295]

We will see that the probability of picking two orange marbles without replacement is 0.23

<h3>How to get the probability?</h3>

If we assume that all the marbles have the same probability of being randomly picked, then the probability of getting an orange marble is given by the quotient between the number of orange marbles and the total number of marbles, this gives:

P = 6/12 = 1/2

And then we need to get another orange marble, without replacing the one we picked before, this time there are 5 orange marbles and 11 in total, so the probability is:

Q = 5/11

Finally, the joint probability (of these two events happening) is the product of the probabilities, so we get:

P*Q = (1/2)*(5/11) = 0.23

If you want to learn more about probability, you can read:

brainly.com/question/251701

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2 years ago

What is necessary to determine the z-score for a raw score in a particular set of scores?.

Xelga [282]

Answer:

See below

Step-by-step explanation:

The mean score and the standard deviation are needed

7 0

2 years ago