Solve the Problem Using Matrices

question 291

Multiple Choice

Solve the problem using matrices.
-Anne and Nancy use a metal alloy that is 18.8% copper to make jewelry. How many ounces of an alloy that is 16% copper must be mixed with an alloy that is 20% copper to form 80 ounces of the desired alloy?

• A) 61 oz
• B) 24 oz
• C) 26 oz
• D) 56 oz

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Definitions:

Incision

A cut made into a body part or tissue, oftentimes during surgery.

Initial Phase

The beginning stage or period of a process, operation, or series of events.

Blood Vessels

Tubular structures that carry blood throughout the body, including arteries, veins, and capillaries.

Electric Current

The flow of electric charge through a conductor, typically measured in amperes.