11-19-2010, 11:11 PM
No, this is not a joke. please read this:
two different kinds of coffee beans were blended. individually, they cost $2.30/kg and $3.20/kg. how much of each kind was used if 200kg of the resulting mixture cost $3/kg?
i cannot figure it out. can anyone tell me how to do it?
i am going insane, i have shed tears over this problem.... i might hurt someone if i do not find the answer.... this is not a troll, i really need help here...
two different kinds of coffee beans were blended. individually, they cost $2.30/kg and $3.20/kg. how much of each kind was used if 200kg of the resulting mixture cost $3/kg?
i cannot figure it out. can anyone tell me how to do it?
i am going insane, i have shed tears over this problem.... i might hurt someone if i do not find the answer.... this is not a troll, i really need help here...