# Linear equation and system of inequalities

A target heart rate T that is half a person's maximum heart rate is given by T=110 - 1/2A where A is a person's age.

(a) What is T for a person 30 years old? 50 years old?

(b) Sketch a graph of the system of inequalities.

T > 110 - 1/2A

T < 220 - A

Assume that A is between 20 and 60.

(c) Interpret your graph.

https://brainmass.com/math/linear-algebra/linear-equation-system-inequalities-469008

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Here is my answer:

(a) T=110-1/2*A.

A=30, T=110-1/2*30=95.

A=50, ...

#### Solution Summary

The solution provides detailed explanation how to graph system of inequalities and perform operations for linear equations.

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