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julsineya [31]
3 years ago
14

Which statements about the system are true? Check all that apply.Y = x – 4 3y – x = –7

Mathematics
1 answer:
nirvana33 [79]3 years ago
6 0

The solutions are x = 2.5, y = -1.5, but what are the statements?

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Need help on number 9
inysia [295]
You need to find what 11% of 4 2/5 is.

You can convert 4 2/5 to 4.4 and 11% to .11

Then just multiply them together
4.4 * .11 = your answer
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3 years ago
Someone please help!!<3
Nataliya [291]

Answer:

the answer is c

Step-by-step explanation:

the answer is c

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2 years ago
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3 years ago
Read 2 more answers
In the game of​ roulette, a player can place a ​$9 bet on the number 11, and have a 1/38 probability of winning. If the metal ba
damaskus [11]

Answer:

1. What is the expected value of the game to the​ player?

Expected value= -$0.47368

2. If you played the game 1000​ times, how much would you expect to​ lose?

Expected value= -$473.68

Step-by-step explanation:

1. What is the expected value of the game to the​ player?

Expected value can tell how much you will gain/lose every time you do the game. To find the expected value you need to multiply every value with its chance to occur. There are two types of events here, winning and losing. You have 1/38 chance of winning $315 and 37/38 chance of losing $9.  

The expected value will be:

expected value= 1/38 * $315 + 37/38*(-$9) = $8.2894 - $8.7631

expected value= -$0.47368

You are expected to lose $0.47368 every time you play

2. If you played the game 1000​ times, how much would you expect to​ lose?

Expected value calculated for each roll. If you want to know how much you gain/lose by multiple rolls, you just need to multiply the expected value with the number of rolls. The game has negative expected value so you are expected to lose money instead of gaining money. The money you expected to lose will be:

number of roll * expected value

1000 timer * -$0.47368/time= -$473.68

You are expected to lose $473.68 if you play the game 1000 times.

6 0
3 years ago
How would i get the answer for this problem 973÷2
dybincka [34]

You would divide 973 by 2 and your answer would be 486.5

7 0
3 years ago
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