Answer:
Step-by-step explanation:
Lower limit of range:
H = [tex]\frac{7}{10}[/tex](220-a)
a = 16 [given]
∴ H = [tex]\frac{7}{10}[/tex](220-16)
H = [tex]\frac{7}{10}[/tex](204)
H = [tex]\frac{7}{10}[/tex]×[tex]\frac{204}{1}[/tex]
H = [tex]\frac{1428}{10}[/tex]
H = 142.8
H = 143 beats per minute [as an integer]
