Kim ran a mile in PE class after resting 1 hour her rate was 60 beats per minute if her heart rate decreased 2/5 what was it immediately after she ran the mile

Immediately after she ran the mile, her heart rate was 100 beats per minute.

Step-by-step explanation:

If Kim ran a mile in Physical Education class, and after one hour of rest her heart rate was 60 beats per minute, having dropped 2/5 of the pace it had immediately after finishing running, to know what was said heart rate it is necessary to perform the following calculation:

2/5 = 0.4

Thus, her heart rate dropped 40%. Since 100-40 is equal to 60, your 60 beats are 60% of the heart rate immediately after running. Therefore, the post-exercise heart rate is derived from the following calculation:

60 = 60

100 = X

((100 x 60) / 60) = X

(6,000 / 60) = X

100 = X

Therefore, her heart rate immediately after running was 100 beats per minute.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

true

step-by-step explanation:

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