SOLUTION: Please help,I've asked my family and they don't know. I've even asked my teacher and she said to figure it out. I still don't get it. help please? After exercising, two students

Question 868763: Please help,I've asked my family and they don't know. I've even asked my teacher and she said to figure it out. I still don't get it. help please?
After exercising, two students checked pulses to see how fast their hearts were beating. Marit's heart beat 13 times in 10 seconds. Coleman's heart beat 18 times in 15 seconds. State a unit that can be used to compare the students' heart rates. Identify which student has the faster heart rate. Show your work to support the comparison.
I think it could be Marit's heart. help please?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
"Marit's heart beat 13 times in 10 seconds" so Marit's rate is 13/10 = 1.3 beats per second

"Coleman's heart beat 18 times in 15 seconds" so Coleman's rate is 18/15 = 1.2 beats per second

So Marit's heart rate is faster (by 1.3 - 1.2 = 0.1 beats per second)
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