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What does this mean in terms of age and heart rate

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Systems of inequalities will be used to model three of the target heart rate ranges shown in the bar us We begin with the target heart rate range for cardiovascular conditioning, modeled by the following system of inequalities:

10 ≤ a < 70                         H ≥ 0.7(220 - a)                                  H ≤ .08(220 - a)

Heart rate ranges apply to    Target heart rate range is greater       and less than or equal to 80% of
ages 10 through 70,             than or equal to 70% of                     maximum heart rate.
inclusive.                            maximum heart rate.

The graph of this system is shown in the fi cure. Use the graph to solve the following Exercise.

383_figure.jpg

a. What are the coordinates of point B and what does this mean in terms of age and heart rate?

b. Show that point B is a solution of the system of inequalities.

Verified Expert

The task consisted of two problems ,the first one was about interpretation of graph and value of the variables.The second problem involved checking weather a given point was the solution of a set of simultaneous linear inequalities.

Reference no: EM132260319

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