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The normal systolic blood pressure P, in millimeters
of mercury, for an adult male x years old can be
modeled by the equation P = ( x + 220 )/ 2
. According to
the model, for every increase of 1 year in age, by how
many millimeters of mercury will the normal systolic
blood pressure for an adult male increase?



Answer :

By 1/2 millimeters of mercury will the normal systolic blood pressure for an adult male increase.

What is blood pressure?

  • The pressure of circulating blood against the walls of blood vessels is referred to as blood pressure (BP).
  • The majority of this pressure is caused by the heart pumping blood through the circulatory system.
  • The term "blood pressure" refers to the pressure in the large arteries when used without qualification.
  • In the cardiac cycle, blood pressure is typically expressed as the ratio of the systolic pressure (maximum pressure during one heartbeat) to diastolic pressure (minimum pressure between two heartbeats).
  • It is expressed in millimeters of mercury (mmHg) above atmospheric pressure.

To find by how many millimeters of mercury will the normal systolic blood pressure for an adult male increase:

  • The normal systolic blood pressure of an adult male increase by millimeters of mercury every 1 year of age is:
  • [(x+1)+220]/2 - (x+220)/2 = (x+1+220-x-220)/2 = 1/2

Therefore, by 1/2 millimeters of mercury will the normal systolic blood pressure for an adult male increase.

Know more about blood pressure here:

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