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mixer [17]
3 years ago
15

You pay $10 to play the following game of chance. there is a bag containing 12 balls: three are red, five are green, and the res

t are yellow. You are to draw one ball from the bag. You will win $15 if you draw a red ball, and you will win $10 if you draw a yellow ball. You win nothing for drawing a green ball. What is the expected value? Should you play?​
Mathematics
1 answer:
Bogdan [553]3 years ago
7 0

Answer:

$ -2.08  expected to lose  

Step-by-step explanation:

3 25.0%  $15.00   $5.00   $1.25  

5 41.7%  $10.00   $-     $-    

4 33.3%  $-     $(10.00)  $(3.33)  

     

    $(2.08)  expected to lose  

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The difference between two numbers is 14. if 1/3 of the larger number is subtracted from the smaller number ,the result equals 1
otez555 [7]

Answer:

Step-by-step explanation:

x-y=14

x-1/3y=1/10

-y=14-x

y=-14+x

take out the factors

x-10/30y=3/30

30x-10y=3

substitute

30x-10(-14+x)=3

30x+140-10x=3-140

20x/20=-137/20

x=-6.85

y=-14+(-6.85)

y=-20.85

7 0
3 years ago
What is this song of 2.5 x 10 to the 4th power + 3.4 * 10 to the 4th power
Sergio039 [100]
5.9 • 10^4

just add the two numbers because the exponents are equal.
4 0
3 years ago
What is the simplified form of the expression 3 + 8x − 2y − x + 1 + 4y? Enter your answers in the boxes.
mr_godi [17]
3+8x-2y-x+1+4y

Combine all like terms and 

7x+4+2y is your answer
3 0
4 years ago
What is the surface area of a prism that has detentions of: length is 5.5, width is 6, and the hight is 2.4
Alex787 [66]

Answer:

79.2

Step-by-step explanation:

6 0
3 years ago
Six plus -2 times a number is the same as 26 plus six times the same number.
aleksandr82 [10.1K]

Step-by-step explanation:

let the number be x

and according to question,

six + 2 times a number = 2x + 6

26 + 6 times a number = 6x + 26

→ 2x + 6 = 6x + 26

→ -6x + 2x = 26 - 6

→ -4x = 20

→ x = 20/4 = 5

→ x = 5

therefore, the number is 5.

hope this answer helps you dear...take care and may u have a great day ahead!

7 0
3 years ago
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