Mathematics, 21.08.2019 17:30 ayaan9573
The recommended heart rate for weight management exercise and improving cardio fitness, in beats per minute, depends on a person's age and can be represented by the expression0.7(220–푎). part a: what does the variable in the expression represent? part b: rewrite the expression using the distributive property. part c: what is the recommended heart rate for a 20-year-old person?
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