To determine the number of times Jesse's heart beats in an hour given that it beats 70 times a minute, we need to perform the following steps:
1. Identify the number of beats per minute:
Jesse's heart beats 70 times a minute.
2. Determine the number of minutes in an hour:
There are 60 minutes in an hour.
3. Calculate the total number of beats in an hour:
Multiply the number of beats per minute by the number of minutes in an hour.
[tex]\[
\text{Total beats per hour} = 70 \, \text{beats/minute} \times 60 \, \text{minutes/hour}
\][/tex]
4. Perform the multiplication:
[tex]\[
70 \times 60 = 4200
\][/tex]
So, Jesse's heart beats 4,200 times in an hour. Therefore, the correct answer is:
4,200 beats per minute.
