SOLUTION: A merchant has coffee worth $60 a pound that she wishes to mix with 40 pounds of coffee worth $90 a pound to get a mixture that can be sold for $80 a pound. How many pounds of the
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Question 326253: A merchant has coffee worth $60 a pound that she wishes to mix with 40 pounds of coffee worth $90 a pound to get a mixture that can be sold for $80 a pound. How many pounds of the $60 coffee should be used? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! A merchant has coffee worth $60 a pound
mix with 40 pounds of coffee worth $90
can be sold for $80 a pound.
..
let $60 coffee be x pounds
$90 coffee 40 pounds
Total $ 80 , 40+x pounds
..
60x+90*40=80(40+x)
60x +3600=80x+3200
20x=400
x= 20 pounds
