Question

A bag has 6 red marbles, 3 blue marbles, and 1 orange marble. In a game to raise money for a class trip, parents pay $5 and pull a marble randomly from the bag. The payout is $10 for pulling an orange marble, $4 for a blue marble, and $1 for a red marble. How much can the class expect to earn per game?

Answer 1

There are 6 red marbles.
There are 3 blue marbles.
There is 1 orange marble.

To pull a marble from the bag you have to pay $5.

Payout for an orange marble is $10.
Payout for a blue marble is $4.
Payout for a red marble is $1.


Total amount of marbles= 6+3+1
=10.

Multiply the amount of marbles by the amount required to pull a marble
$5^10=$50


Multiply the amount of marbles for each color by the payout.

Red Marbles: 6^1=6
Blue Marbles: 3^4=12
Orange Marbles: 1^10=10

Add the total
$6+$12+$10=$28

Subtract from the $28 from the $50
28-50=22

Therefore, the class can expect to earn approximately $22 per game