Answer:
Heart can beat 140 times in = 2 minutes .
Rate of heart beat= 70 beat per minute .
Step-by-step explanation:
Given : In 10 minutes a heart can beat 700 times.
To find : At this rate in how many minutes will a heart beat 140 times.
Solution : We have given
Heart can beat 700 times in = 10 minutes .
Heart can beat 140 times in = [tex]\frac{10* 140}{700}[/tex] minutes .
Heart can beat 140 times in = [tex]\frac{1400}{700}[/tex] minutes .
Heart can beat 140 times in = 2 minutes .
Rate of heart beat : [tex]\frac{140}{2}[/tex] beat per minute.
Rate of heart beat= 70 beat per minute .
Therefore, Heart can beat 140 times in = 2 minutes .
Rate of heart beat= 70 beat per minute .
