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Mathematics

1 answer:

Eddi Din [679]1 year ago

6 0

step 1

Find out the expected value

In this game, the total possible outcomes are 12

The probability of a win is P=1/12

The probability of loss is P=11/12

EV=(1/12)*(30-20)-(11/12)*30

EV=(1/12)*(10)-(11/12)*30

EV=(10/12)-(330/12)

EV=-320/12

EV=-26.67p ----> is negative because is a loss for the players

If 60 people play the game

26.67*60=1,600

therefore

The school expect to raise for charity 1,600p

Divide by 100

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Answer:

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Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Equation of a line with an slope of 1/2 that contains (-4, 7)

nasty-shy [4]

Equation of a line with an slope of 1/2 that contains (-4, 7) is $y=\frac{1}{2} x+9$

Solution:

We have been given a point and slope of an equation and have been asked to write it in an equation. The two forms of writing a point and slope in equation are point slope form and standard form.

The standard form of a line is in the form Ax + By = C where A is a positive integer, and B, and C are integers. The standard form of a line is just another way of writing the equation of a line.

To write in standard form we will first write it in point slope form and then rearrange it into a standard from.

The formula for point slope form:

$y-y_{1}=m\left(x-x_{1}\right)$