Question

The maximum heart​ rate, in beats per​ minute, that you should achieve during exercise is 220 minus your​ age, 220 minus a. Your exercise goal is to improve cardiovascular conditioning. Use the following formulas to answer parts a and b. Lower limit of range Hequalsseven tenths left parenthesis 220 minus a right parenthesis Upper limit of range Hequalsfour fifths ​(220 minus a​) a. What is the lower limit of the heart​ range, in beats per​ minute, for a 43​-year-old with this exercise​ goal?

Answer 1

123.9 ≈ 124 beats per minute

Explanation:

Data and formula provided in the question:

Age = 43 years old

The Formula for lower limit of range is given as:

lower limit of range =
`(7)/(10)(220-\textup{Age})`

Thus, on substituting the respective values, we get

lower limit of range =
`(7)/(10)(220-43)`

or

Lower limit of range = 123.9 ≈ 124 beats per minute