Please help me solve this

Mathematics

1 answer:

Maurinko [17]3 years ago

6 0

Since AB and QR are equal set them equal and plug in your answer for x for AB

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A game involves drawing a single card from a standard deck. One receives 60 cents for an ace, 30 cents for a king, and 5 cents f

professor190 [17]

Answer:

The expected game value is -1 cent

Step-by-step explanation:

Here, we want to calculate the expected value of the game

We have 4 aces and 4 kings, including 26 red cards

The number of aces is 4

Probability of drawing an ace is 4/52 = 1/13

Probability of drawing a king is also 4/52 = 1/13

There are 26 red cards

The number of red cards that are neither ace nor king

There are 2 red aces and 2 red kings

So the number of cards that are red but are not

aces nor kings are 26-2-2 = 22

The probability of selecting this is 22/52 = 11/26

So the expected value is simply the probability multiplied by the amount

Thus, we have;

(60 * 1/13) + (30 * 1/13) + (5 * 11/26)

= 60/13 + 30/13 + 55/26

= (120 + 60 + 55)/26 = 9.038 cents which is approximately 9 cents

we subtract this from the 10 cents we are playing with, thus we are left with 9-10 = -1 cent

7 0

3 years ago

A spinner is spun 22 times. What is the experimental probability of spinning either a 5 or 6?

Nesterboy [21]

Answer:

quedarse corona abuelos pelear

6 0

3 years ago

Point B(6, -3) is translated using the rule (x -5 y + 9) what is the y coordinate of B'

Andrej [43]

This rule shows how we transition the x-coordinate and y-coordinate when finding B'.

In this rule, it shows us what to add/subtract from the x-value and y-value in the coordinate. We can see that it wants us to subtract 5 from the x-value (based on the "x - 5") and that it wants us to add 9 to the y-value (based on the "y + 9"). Based on this information, we can find B':

$\textrm{B}'(6 - 5, -3 + 9)$