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Solve the Problem Using Matrices $4.63\$ 4.63 Per Pound with Candy Worth

Question 415

Multiple Choice

Solve the problem using matrices.
-Ellen wishes to mix candy worth $4.63\$ 4.63 per pound with candy worth $8.15\$ 8.15 per pound to form 25 pounds of a mixture worth $7.45\$ 7.45 per pound. How many pounds of the more expensive candy should she use?


A) 5lb5 \mathrm { lb }
B) 25lb25 \mathrm { lb }
C) 20lb20 \mathrm { lb }
D) 7lb7 \mathrm { lb }

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