Solve the Problem Using Matrices $\$ 1.66$ Per Pound with Candy Worth

question 383

Multiple Choice

Solve the problem using matrices.
-Ellen wishes to mix candy worth $\$ 1.66$ per pound with candy worth $\$ 7.29$ per pound to form 27 pounds of a mixture worth $\$ 5.41$ per pound. How many pounds of the more expensive candy should she use?

• A) \(9 \mathrm { lb }\)
• B) \(18 \mathrm { lb }\)
• C) \(23 \mathrm { lb }\)
• D) \(11 \mathrm { lb }\)

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