Question 1153984: please help with the following question
Three varieties of coffee long dash Coffee A, Coffee B, and Coffee C long dash are combined and roasted, yielding a 52-lb batch of coffee beans. Twice as many pounds of Coffee C, which retails for $9.95 per lb, are needed as Coffee A, which sells for $15.37 per lb. Coffee B retails for $13.99 per lb. How many pounds of each coffee should be used in a blend that sells for $12.61 per lb?
Should be used
lb. of Coffee A,
lb. of Coffee B and
lb. of Coffee C.
Answer by josgarithmetic(39617)   (Show Source):
You can put this solution on YOUR website!
COFFEE QUANT. PRICE COST
A a 15.37
B b 13.99
C 2a 9.95
TOTALS 52 12.61
You should be able to fill-in the cost information, and then write two equations in two unknowns, and then solve. A fairly simple substitution should allow for ONE single equation in ONE unknown.
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