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astra-53 [7]
2 years ago
6

On a spinner, there are twenty equal-size sections numbered from 1 to 20. Which spinner game is fair? Show your work.

Mathematics
1 answer:
Anvisha [2.4K]2 years ago
5 0

The spinner game is an illustration of probability, and the spinner game that is fair is (b) If you spin a number greater than 10, you win.

<h3>How to determine the fair game?</h3>

The number of sections in the spinner is given as:

n = 20

There are 10 numbers greater than 10 i.e. 11 to 2.

So, the probability that a number greater than 10 is spun is:

P = 10/20

P = 0.5

The probability that a number that is not greater than 10 is spun is calculated using the following complement rule

q = 1 - p

This gives

q = 1 - 0.5

Evaluate

q = 0.5

Notice that both probabilities are the equal

Hence, the spinner game that is fair is (b) If you spin a number greater than 10, you win.

Read more about probability at:

brainly.com/question/3581617

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Answer:

x² + x + 3 = 0

Step-by-step explanation:

To use the distributive property, we want to multiply the coefficient (the number directly outside the parentheses) with each term within the parentheses.

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Distributive property:

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2 years ago
$9 for adults and $6 for children. If the movie theater cashier collects $1719 from the sale of 200 tickets, how many adult tick
Bad White [126]

Hey there!!

We will have to solve this using 2 variables

Let's take the number of adults as ' x '

Let's the number of children as ' y '

The total number of tickets = 200

Let me explain this : If the total number of tickets is equal to 200, then the total number of people is equal to 200

Hence , x + y = 200

$9 for adults

The total cost for adult tickets = 9x

$6 for children

The total cost for children tickets = 6y

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9x + 6y = 1719

3 ( 3x + 2y ) = 1719

3x + 2y = 573

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

Now we have two equations

x + y = 200 ------------- ( 1 )

3x + 2y = 573 ---------- ( 2 )

Now let's multiply the first equation with 2

2 ( x + y ) = 2 ( 200 ) -------- ( 1 )

3x + 2y = 573

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

2x + 2y = 400

3x + 2y = 573

Now let's subtract the first equation from second

- ( 2x + 2y )  = - ( 400 )

3x + 2y = 573

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

-2x - 2y = - 400

3x + 2y = 573

x = 173

Hence , the number of adult tickets sold = 173

The required answer = 173

Hope my answer helps!

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