Abox contains ten $1 bills, five $2 bills, three $5 bills, one $10 bill, and one $100 bill. a person is charged $20 to select one bill. find the expected value for this game. is this game fair?

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

the answer is 13/48

step-by-step explanation: