Hi,

odds of rolling a 2 or 3 on a number cube

2 ways of rolling a 2 or 3 , 4 ways of rolling other than a 2 or 3

 2:4  0r  1:2 

Answer by Adebimpe(3)   (Show Source): You can put this solution on YOUR website!
 4x - y = 20 ....... Eqn 1

-2x -y = 10 ........ Eqn 2

subtrating eqn 2 from 1

4x - - 2x -y - -y = 20 - 10

6x = 10

x = 5/3

subt x in eqn 1

4(5/3) - y = 20

20/3 - y = 20

-y = 20 - 20/3

-y = 40/3

y = - 40/3 

 

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