SOLUTION: A special tea blend is made from two varieties of herbal tea, one that costs $4.00/kg and another that costs $2.00/kg. How many kilograms of each type are needed to make 20 kg of

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A special tea blend is made from two varieties of herbal tea, one that costs $4.00/kg and another that costs $2.00/kg. How many kilograms of each type are needed to make 20 kg of       Log On


   

Question 197383: A special tea blend is made from two varieties of herbal tea, one that costs $4.00/kg and another that costs $2.00/kg. How many kilograms of each type are needed to make 20 kg of a blend worth $2.50/kg?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
4x+2(20-x)=20*2.50
4x+40-2x=50
2x=50-40
2x=10
x=10/2
x=5 kg of the $4 tea is used.
20-5=15 kg of the $2 tea is used.
Proof:
4*5+2*15=50
20+30=50
50=50