SOLUTION: Martina's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Martina $5.60 per pound, and type B coffee costs $4.25 per pound. This month, Mart
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Question 972006: Martina's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Martina $5.60 per pound, and type B coffee costs $4.25 per pound. This month, Martina made 157 pounds of the blend, for a total cost of $780.65. How many pounds of type B coffee did she use?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
A+B=157
5.6*A+ 4.25 *B=780.65
A=(157-B)
-5.6B + 879.2 +4.25 B =780.65
-1.35B =-98.55
B= 73 lbs.. ANSWER cost 310.25
A=84 ;;;; cost 470.40 Total 780.65 check
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