SOLUTION: coffee grounds inc. has two kinds of coffee. Coffee A cost $9 per kg and coffee B costs $6 per kg.how many kilograms of each should be combined to obtain 150 kilograms of a blend w

Question 548862: coffee grounds inc. has two kinds of coffee. Coffee A cost $9 per kg and coffee B costs $6 per kg.how many kilograms of each should be combined to obtain 150 kilograms of a blend worth $8 per kilogram
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
coffee grounds inc. has two kinds of coffee. Coffee A cost $9 per kg and coffee B costs $6 per kg.how many kilograms of each should be combined to obtain 150 kilograms of a blend worth $8 per kilogram
**
let x=kilograms of $9 coffee
150-x=kilograms of $6 coffee
..
9x+6(150-x)=8*150
9x+900-6x=1200
3x=1200-900=300
x=100
150-x=50
ans:
kilograms of $9 coffee=100
kilograms of $6 coffee=50
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