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Juli2301 [7.4K]
3 years ago
15

Please help if you can!!​

Mathematics
1 answer:
Verizon [17]3 years ago
4 0

Answer:

12.5

Step-by-step explanation:

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A pair of fair dice is rolled once. Suppose that you lose ​$8 if the dice sum to 10 and win ​$11 if the dice sum to 11 or 12. Ho
KATRIN_1 [288]
First find the possible dices rolls that give you 10, 11, and 12

Gives 10:
5,5
4,6
6,4

Gives 11 or 12:
5,6
6,5
6,6

The dice rolls have 6 * 6 = 36 possible combinations

The probability of getting a 10 is 3/32
The probability of getting an 11 or 12 is 3/32

multiplying those probabilities together with their reward/loss we have:

3/32 * -8 = -3/4
3/32 * 11 = 33/32

to make the game "fair" we need the probable amount of money you can win to be $0, so we can use the equation

-3/4 + 33/32 + (32/32 - 6/32)*x = 0

then you can just solve for x

6 0
4 years ago
Read 2 more answers
Démontrer que x²-4x+5=(x-2)²+1 ; En déduire que x²-4x+5=0 n'a pas de solution
iragen [17]
1st: toute valeur de x rend I'<span>équation vraie
tous les nombres r</span><span>éels

2nd: r</span><span>ésoudre l'équation pour x en trouvant a, b et c du quadratique puis en appliquant la formule quadratique
x = 2 ± i</span>
8 0
3 years ago
The sum of two numbers is 72. one number is 4 less than the other number. what are the two numbers?
-Dominant- [34]
Let 1st number be = x
Thus second number = x - 4

Now

(x) + (x - 4) = 72
2x - 4 = 72
2x = 76
x = 38

1st number is 38 thus 2nd number is (38 - 4) = 34
8 0
3 years ago
Jerry is 8 years younger than Patricia. Six years ago, Patricia was 3 times as old as Jerry was then. Which system of equations
MissTica
<span>Jerry is 8 years younger than Patricia, so: (1): Jerry = Patricia - 8 Six years ago, Patricia was 3 times as old as Jerry was then, so: (2): (Patricia - 6) = (Jerry - 6)*3 Putting equation 1 in to equation 2 (Patricia - 6) = (Patricia - 8 - 6)*3 Patricia - 6 = 3Patricia - 42 36 = 2Patricia Patricia = 18 And so Jerry = 10</span>
4 0
3 years ago
Which expression uses the associative property to make it easier to evaluate 14(3/2 x 1/4)
Sav [38]

Answer:

Not sure but the answer to 14(3/2 x 1/4) is 5.25

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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