Set Up the System of Equations and Then Solve It

question 215

Multiple Choice

Set up the system of equations and then solve it by using inverse matrices. ​
Nutrition A biologist has a 40% solution and a 10% solution of the same plant nutrient. How many cubic centimeters of each solution should be mixed to obtain 35 cc of a 28% solution?
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Definitions:

Alcohol-Based

Refers to products, particularly sanitizers or disinfectants, that contain a significant percentage of alcohol to kill bacteria and viruses.

Washing Hands

The act of cleaning one's hands with soap and water or an alcohol-based hand rub to reduce the spread of germs and prevent infections; a rephrased definition of Hand Hygiene.

Contact Isolation

Infection control measures designed to prevent the spread of diseases that can be transmitted through direct or indirect contact with an infected individual.

Personal Protective

Equipment worn to minimize exposure to hazards that cause serious workplace injuries and illnesses, such as gloves, goggles, and face shields.