Answered

Westonci.ca is the premier destination for reliable answers to your questions, provided by a community of experts. Explore in-depth answers to your questions from a knowledgeable community of experts across different fields. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

Medical researchers have determined that for exercise to be beneficial, a person’s desirable heart rate, R, in beats per minute, can be approximated by the formulas

R=143-0.65a for women
R=165-0.75a for men,

where a represents the person’s age. What would the desirable heart rate be for a 46 year old woman?
a. 113 beats per minute
b. 172.9 beats per minute
c. 143.7 beats per minute
d. 63 beats per minute

Sagot :

Giovi
I would say a) 113 beats per minute:
substituting 46 for a in the formula: R=143-0.65a you should get 113.

Answer:

Option a is correct.

The desirable heart rate be for a 46 year old woman is, 113 beats per minute.

Step-by-step explanation:

Here, R represents a person's desirable heart rate(in beats per minute)

and a represents the person's age.

The desirable heart rate of a person's can be approximated by the formulas;

For women:

[tex]R = 143 - 0.65a[/tex]                  ......[1]

For men:

[tex]R = 165- 0.75a[/tex]                 ......[2]

To find the desirable heart rate be for a 46 year old woman.

⇒[tex]a = 46 \text{years old woman}[/tex]

Substitute in [1] we get;

[tex]R = 143 - 0.65(46)=143 -29.9 \approx 113[/tex] beats per minute

Therefore, 113 beats per minute would the desirable heart rate be for a 46 years old woman.



Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.