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Solve the Problem Using Matrices

Question 330

Multiple Choice

Solve the problem using matrices.
-Ellen wishes to mix candy worth $2.19 per pound with candy worth $7.87 per pound to form 22 pounds of a mixture worth $6.58 per pound. How many pounds of the more expensive candy should she use?


A) 5 lb
B) 17 lb
C) 7 lb
D) 22 lb

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