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To achieve the maximum benefit for the heart when exercising, the heart rate (in beats per minute) should be in the target heart rate zone. The lower limit of this zone is found by taking 70% of the difference between 220 and the age of the person. The upper limit is found by using 85% of the difference. Complete parts a through d. www a. Find formulas for the upper and lower limits (U and L) as linear equations involving the age x. U= 187-0.85x (Use integers or decimals for any numbers in the equation. Do not factor.) L= (Use integers or decimals for any numbers in the equation. Do not factor.)

To achieve the maximum benefit for the heart when exercising, the heart rate (in beats per minute) should be in the target heart rate zone. The lower limit of this zone is found by taking 70% of the difference between 220 and the age of the person. The upper limit is found by using 85% of the difference. Complete parts a through d. www a. Find formulas for the upper and lower limits (U and L) as linear equations involving the age x. U= 187-0.85x (Use integers or decimals for any numbers in the equation. Do not factor.) L= (Use integers or decimals for any numbers in the equation. Do not factor.)

College Algebra
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section1.3: Lines
Problem 92E
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To achieve the maximum benefit for the heart when exercising, the heart rate (in beats per minute) should be in the target heart rate zone. The lower limit of this zone is found by taking 70% of the difference between 220 and the age of the person. The upper limit is found by using 85% of the difference. Complete parts a through d. a. Find formulas for the upper and lower limits (U and L) as linear equations involving the age x. U= 187-0.85x (Use integers or decimals for any numbers in the equation. Do not factor.) L= (Use integers or decimals for any numbers in the equation. Do not factor.)
Transcribed Image Text:To achieve the maximum benefit for the heart when exercising, the heart rate (in beats per minute) should be in the target heart rate zone. The lower limit of this zone is found by taking 70% of the difference between 220 and the age of the person. The upper limit is found by using 85% of the difference. Complete parts a through d. a. Find formulas for the upper and lower limits (U and L) as linear equations involving the age x. U= 187-0.85x (Use integers or decimals for any numbers in the equation. Do not factor.) L= (Use integers or decimals for any numbers in the equation. Do not factor.)
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