Algebra
posted by genie .
Target Heart Rate (Refer to the preceding exercise.)
A target heart rate T that is half a person’s maximum
heart rate is given by T=1101/2A, 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>1101/2A
T<220A
Assume that A is between 20 and 60.
(c) Interpret your graph.
Respond to this Question
Similar Questions

prealgebra
measuring your heart rate is one way to check the intensity of exercise. studies show that a person's maximum heart rate depends on his or her age. The expression 220a approximates a person's maximum heart rate in beats per minute, … 
algebra
A person’s maximum heart rate is the highest rate, in beats per minute, that the person’s heart should reach. A person’s age added to his or her maximum heart rate is 220. Write and solve an equation to find the maximum heart … 
Health
Ken's target heart rate is 122139bpm. His resting heart rate is 73 bpm. What is his age? 
Biology
Hey I am doing a lab, the link is down h t t p : //w w w . sd67 . bc . ca/schools/salc/biology%2012/module%20c%20%20human%20biology/unit%2010%20%20respiratory%20system/Homeostasis%20Lab .pdf And I really would like help with #1 My … 
Algebra 1B
The polynomial given by 1.6t^ 2  28t + 200 calculates the heart rate, where t represents the elapsed time in minutes since exercise stopped. 1. What is the heart rate when the athlete first stops exercising? 
medical terminology/exercise science terminology
how does the body adapt to aerobic exercise a.by increasing blood pressure when a person isn't exercising b.by increasing the heart rate when a person isn't exercising c.by decreasing the heart rate when a person isn't exercising d.by … 
7 th Math
During exercise, the recommended maximum heart rate in beats per minute is modeled by the formula, M = 176 – 0.8A, where M is the maximum heart rate and A is the person’s age. Solve the formula for A. At what age would you have … 
Math
During exercise, the recommended maximum heart rate in beats per minute is modeled by the formula M=1760.8A, where M is the maximum heart rate and A is the person’s age. Approximately, at what age would you have a recommended heart … 
Math check my answer
During exercise, the recommended maximum heart rate in beats per minute is modeled by the formula M = 176 – 0.8A, where M is the maximum heart rate and A is the person’s age. Approximately, at what age would you have a recommended … 
Math
During exercise, the recommended maximum heart rate in beats per minute is modeled by the formula M=1760.8A, where M is the maximum heart rate and A is the person’s age. Approximately, at what age would you have a recommended heart …