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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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
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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