SOLUTION: Please help.
A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound.
The two types are to be mixed to create 100 lb of a mixture that will sell for $1
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Question 113480: Please help.
A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound.
The two types are to be mixed to create 100 lb of a mixture that will sell for $11.25 per pound.
How much of each type of bean should be used in the mixture?
Please show the equations used for the solution.
Thanks
JMS
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
9X+12(100-X)=100*11.25
9X+1200-12X=1125
-3X=1125-1200
-3X=-75
X=-75/-3
X=25 ANSWER. FOR THE POUNDS OF $9 COFFEE USED.
100-25=75 FOR THE POUNDS OF $12 COFFEE USED.
PROOF
9*25+12*75=100*11.25
225+900=1125
1125=1125
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