Question

Use a clock or stopwatch to take your pulse rate while sitting relaxed. Record the number of beats for 30 seconds. Now, walk out your front door and run around your house, then come back inside. Take your pulse again and record the number of beats for 30 seconds.

What is the percent increase in your pulse rate? Show your work. Round your percent to the nearest whole number.

Answer 1

...its your heartrate. what was your heartrate?

Answer 2

what if you live in a condo how are you suppose to run around your house then

Answer 3

or an apartment building

Answer 4

wtf idk ahahaha

Answer 5

well if you don't live in a house you can run around I would just not answer it

Answer 6

Have you taken some measurements yet?

Answer 7

but yeah take some measurements or something then we can help you out

Answer 8

The answer should be

((Final heart Rate)/(Initial heart Rate))*100 - 100

Answer 9

This is based on the fact that your initial heart rate will be 100%

Answer 10

You will end up with above 100%, to correct for this we subtract by 100

Answer 11

since your final heart rate will be higher than your initial, I'm explaining it to the person who asked the question :)

Answer 12

I'm not trying to rub it in lol

Answer 13

i took a measurement
\[P_{_{resting}}=35\frac{[\text{beats}]}{30[\text s]}\times\frac{60[\text{s}]}{[\text{min}]}=70\frac{[\text{beats}]}{[\text {min}]}\]

Answer 14

What if your final heart rate was lower than your initial? I mean, you could have died during the running. I wonder if this teacher has a good lawyer.

Answer 15

That wouldn't make any sense Shane_B

Answer 16

logically your heart rate at rest is always slower than your heart rate after being active

Answer 17

Did you read what I said ?!

Answer 18

Combined me and rukus have answered your question :)

Answer 19

if you are still confused please feel free to ask any questions you may have @allstargirl863

@Shane_B yes I did your heart rate will always be higher after physical activity, This question assumes the individual is at rest initially.

Answer 20

okay

Answer 21

I think you missed the joke altogether...I'm pretty sure when you're dead, your heart rate is 0. I give up :)

Answer 22

Oh no I get it :) but no one would be around to answer the question anymore. You are right also in a case like this it would probably be the government that falls under liability not the teacher unless he has tons of money.

Answer 23

I cannot recall the legal term

Answer 24

Sorry I only half read things normally

Answer 25

I have the same problem sometimes :)

Answer 26

i took another measurement
\[P_{_\text{resting+three coffees}}=40\frac{[\text{beats}]}{30[\text s]}\times\frac{60[\text{s}]}{[\text{min}]}=80\frac{[\text{beats}]}{[\text {min}]}\]

Answer 27

increase
\[P_{\text{resting+three coffees}}-P_{\text{resting}}\]

percentage increase
\[\frac{P_{\text{resting+three coffees}}-P_{\text{resting}}}{P_{\text{resting}}}\times100\%\]\[=\frac{80\frac{[\text{beats}]}{[\text {min}]}-70\frac{[\text{beats}]}{[\text {min}]}}{70\frac{[\text{beats}]}{[\text {min}]}}\times100\%\]\[=\frac 17\times100\%\]\[\approx14\%\]