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Aleks04 [339]
3 years ago
14

AMA is N years old now.How old will she be in 10 years?

Mathematics
1 answer:
Likurg_2 [28]3 years ago
4 0

Answer:

N+10

Step-by-step explanation:

current age N, shebwill get 10 years older

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A lottery consists of one $2000 winner, three $500 winners, and ten $100 winners. a total of 1000 tickets are sold for $10 each.
Semenov [28]

Answer: -5.5

 

WOKINGS

Given that the lottery has the following number of winners:

One $2000 winner

Three $500 winners

Ten $100 winners

 

Also Given,

A total of 1000 tickets are sold

Each ticket costs $10

 

The expected winning for a person purchasing one ticket is the sum of the products of the gain/loss and their corresponding probability.

 

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There are 1000 tickets

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= 1/1000

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There are 1000 tickets

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= 2000(.001) + 500(.003) + 100(.01) – 10(1)

= 2 + 1.5 + 1 – 10

= -5.5

 

The expected winning is -5.5. This implies that a person playing this lottery can expect to lose $5.50 for every one ticket that they purchase. 

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