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2 years ago

Dividing demcimals 0.2 divided 1.64

Mathematics

2 answers:

Nimfa-mama [501]2 years ago

6 0

1.64 / 0.2 = 8.2 I checked it to make sure by multipying: 8.2 * 0.2 = 1.64

Nikitich [7]2 years ago

6 0

0.2 / 1.64 = 0.12195122

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A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 20000 tickets are sold at 2

Shalnov [3]

Answer:

The expected winnings for a person buying 1 ticket is -0.2.

Step-by-step explanation:

Given : A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 20000 tickets are sold at 25 cents each, find the expected winnings for a person buying 1 ticket.

To find : What are the expected winnings?

Solution :

There are one first prize, 2 second prize and 20 third prizes.

Probability of getting first prize is $\frac{1}{20000}$

Probability of getting second prize is $\frac{2}{20000}$

Probability of getting third prize is $\frac{20}{20000}$

A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each.

So, The value of prizes is

$\frac{1}{20000}\times 1000+\frac{2}{20000}\times 300+\frac{20}{20000}\times 10$

If 20000 tickets are sold at 25 cents each i.e. $0.25.

Remaining tickets = 20000-1-2-20=19977

Probability of getting remaining tickets is $\frac{19977}{20000}$

The expected value is

$E=\frac{1}{20000}\times 1000+\frac{2}{20000}\times 300+\frac{20}{20000}\times 10-\frac{19977}{20000}\times 0.25$

$E=\frac{1000+600+200-4994.25}{20000}$

$E=\frac{-3194.25}{20000}$

$E=-0.159$

Therefore, The expected winnings for a person buying 1 ticket is -0.2.

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2 years ago

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2 years ago

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kolbaska11 [484]

Answer:

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9= 5. 2×5-6 = 4

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2 years ago

Across which axis was point E reflected?

dsp73

Answer:

X- axis

Hope that helps! :D

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2 years ago

solve, showing all work. state if there is one solution, no solution, or infinite solutions 2(2b-4)+5=7+2b help asap i need the

WINSTONCH [101]

Answer:

one solution

Step-by-step explanation:

2(2b-4)+5=7+2b

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4b -3 = 7 + 2b

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b = 10/2

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it can have only 5 as solution that will be only one solution if we change the value of 5 to other number then the answer will be wrong

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