The Sprinters on a Track Team Use the Following System

question 4

Multiple Choice

The sprinters on a track team use the following system of inequalities to determine their targeted exercise heart rate ranges for their workouts. In this system, y is the person s exercise heart rate in beats per minute and x is the person s age in years. Use the system of inequalities to determine the targeted exercise heart rate range for a sprinter who is 23 years old. Round the minimum and maximum targeted heart rates to the nearest beat per minute.

• A)between 197 and 202 beats per minute
• B)between 99 and 108 beats per minute
• C)between 174 and 178 beats per minute
• D)between 87 and 98 beats per minute
• E)between 99 and 108 beats per minute.

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