Elodie wants to predict how many times her heart will beat in a year. When she is resting, her heart beats 8 times in 6 seconds. a) Use this information to predict the number of times her heart will beat in 1 minute. b) Predict the number of times her heart will beat in 1 year. c) Give two reasons why your predictions may differ from reality. 1 minute \( =60 \) seconds

To find how many times Elodie's heart will beat in one minute, we first calculate her beats per second. If her heart beats 8 times in 6 seconds, that’s approximately \( \frac{8}{6} \) beats per second or about 1.33 beats per second. To find the beats in one minute, we multiply by 60 seconds: \( 1.33 \times 60 \approx 80 \) beats per minute. For the yearly prediction, assuming Elodie maintains this heart rate consistently, we do the following calculation: \( 80 \) beats per minute \( \times 60 \) minutes \( \times 24 \) hours \( \times 365 \) days, which totals approximately \( 42,048,000 \) beats in a year. However, these predictions may differ from reality because heart rates can fluctuate due to activities, stress, or other factors, and individual rest periods might not be constant over time. Additionally, changes in physical fitness and health could cause her resting heart rate to adjust throughout the year.