____ Is a Trace Mineral in Your Body

question 81

Multiple Choice

____ is a trace mineral in your body.

• A)Zinc
• B)Calcium
• C)Phosphorus
• D)Potassium

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Definitions:

Method of Substitution

A technique used to solve systems of equations where one equation is solved for one variable in terms of the others, and then substituted into another equation.

System of Equations

A collection of two or more equations with the same set of unknowns.

Method of Substitution

A technique for solving systems of equations by replacing one variable with an equivalent expression in terms of the other variables.

System of Equations

A set of two or more equations with the same variables, which are solved together.