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emmasim [6.3K]
2 years ago
6

Discount!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Law Incorporation [45]2 years ago
3 0

Answer:

1). Discount = $10 Sales Price = $30

2). Discount = $2.40 Sales Price = $9.60

3). Discount = $2.50 Sales Price = $2.50

4). Discount = $150 Sales Price = $350

Step-by-step explanation:

1).

Discount

= 25% of marked price

= 25% x $40

= (25/100) x 40

= $10  

Sales price = Marked price - Discount = $40 - $10 = $30

2).

Discount

= 20% of marked price

= 20% x $12

= (20/100) x 12

= $2.40

Sales price = Marked price - Discount = $12 - $2.40 = $9.60

3).

Discount

= 50% of marked price

= 50% x $5

= (50/100) x 5

= $2.50

Sales price = Marked price - Discount = $5 - $2.50 = $2.50

4).

Discount

= 30% of marked price

= 30% x $500

= (30/100) x 500

= $150

Sales price = Marked price - Discount = $500 - $150 = $350

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PolarNik [594]

Answer:

a)

- the probability she will win the dinner for two is 0.016

- the probability she will not win the dinner for two is 0.984

b)

- Lisa's expected earnings is $0.57

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Step-by-step explanation:

Given the data in the question;

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a) Lisa bought 12 cookies. What is the probability she will win the dinner for two?

P( she will win ) = Number of cookies bought / Total number of cookies

P( she will win ) = 12 / 743

P( she will win ) = 0.01615 ≈ 0.016

Therefore,  the probability she will win the dinner for two is 0.016

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P( she will not win ) = 1 - 0.016

P( she will not win ) = 0.984

Therefore,  the probability she will not win the dinner for two is 0.984

b)  Lisa's expected earnings can be found by multiplying the value of the dinner by the probability that she will win. What are Lisa's expected earnings? (Round your answer to two decimal places.)$

given that value of dinner = $35

P( she will win ) = 0.01615

so

Lisa's earning = $35 × 0.01615

Lisa's earning = $0.57

Therefore, Lisa's expected earnings is $0.57

- How much did she effectively contribute to the hiking club? (Round your answer to two decimal places.)$

Lisa's contribution = Money she paid for cookies - money from expected earnings

Lisa's contribution = ( 12 × $1 ) -  $ 0.57

Lisa's contribution = $12 -  $0.57

Lisa's contribution = $11.43

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4 0
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Answer: The probability is 1/8

Explanation:

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We are flipping the coin three times.

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The number of all possible outcomes is the product of 2 possibilities (Head or Tail) on first toss, times another 2 on second, times another 2 on third, so 2^3 = 8.

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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