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suter [353]
3 years ago
12

Please I need help!

Mathematics
1 answer:
Sidana [21]3 years ago
6 0
With what
With what
With what
With what
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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
Devon has 14 steel balls of equal weight. If he puts 8 of them in one pan of a balance, and the rest along with a weight of 20 g
astra-53 [7]
Let n be a number of balls: n = 14

In one pan you have 8 balls: 8n
In the other pan you have the rest of balls (14 - 8 = 6) along with a <span>weight of 20 grams = 6n + 20
So the pans are balanced:
8n = 6n + 20

Now, just solve the equation:
8n - 6n = 20
2n = 20
n = 20/2
n = 10
So, you know that a ball weights 10 grams.</span>
4 0
3 years ago
Read 2 more answers
5/3(6x+3)&lt;2x-7 what is the solution for the iniquality
leva [86]
Isolate "x" onto one side:

5/3 * (6x+3) < 2x - 7

5(6x+3) < 3(2x-7)

30x + 15 < 6x - 21

24x < -36

x < -1.5
8 0
3 years ago
The amount of money left in Alma’s bank account is expressed by the linear equation y = -27x + 577, where x represents the numbe
marissa [1.9K]
145=-27x + 577
27x=432
x=16 weeks
6 0
3 years ago
Read 2 more answers
7 divided by 345689 ​
maxonik [38]

Answer:

7÷345689

0.0000202494

have a great day

8 0
3 years ago
Read 2 more answers
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