MATHEMATICS COLLEGE

a person pays $25 to randomly select one of 5 envelopes containing a different check amount. determine the expected value if the check amounts are $0, $20, $30, $35, and $75

Answers

Answer 1

Answer:

Answer:

Expected value = $32

Step-by-step explanation:

Given:

Check amount = $0, $20, $30, $35, $75

Find:

Expected value

Computation:

Expected value = [$0 + $20 + $30 + $35 + $75] / 5

Expected value = [$160] / 5

Expected value = $32

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Dave has already written 5 pages, and he expects to write 3 pages for every additional hour spent writing. Write a equation that shows the relationship between the hours spent writing x and the total pages written y.Write your answer as an equation with y first, followed by an equals sign.

Answers

Answer:

y=3x+5

Step-by-step explanation:

He starts out with 5 pages already written then every hour after that he writes 3 more so plug in any amount of hours in for x and you will find how many pages he's written plus the 5 that he started out with.

Help me plssssssssed

Answers

Answer:

From the 1st picture to the 2nd it is an reduction

Step-by-step explanation:

Write a simplified expression for the area of the rectangle below

Answers

Answer:

$= 12x + 40$

Step-by-step explanation:

$area = l * b \n = 20 * ((3)/(5) x + 2) \n = (60x)/(5) + 40 \n = 12x + 40$

hope this helps

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Bryan is a hotel manager.his salary is 7500. Every year his salary increases by 150 what will be his salary in 5 years

Answers

Answer:

Just add

8250

Step-by-step explanation:

5 x 150 = 750

then add that to 7500 = 8250

Work out the percentage change to 2 decimal places when a price of £70 is increased to £99.

Answers

The percentage change in the price is 41.42%.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Given that, a price of £70 is increased to £99.

Now, the difference is 99-70=29

Percentage increase is 29/70 ×100

= 0.4142×100

= 41.42%

Therefore, the percentage change in the price is 41.42%.

To learn more about the percentage visit:

brainly.com/question/24159063.

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Answer: Your answer is 41.43%

To calculate, it is simply (99-70)/70 x 100

which is equal to 41.43%