i dont get this? please help?
Systolic blood pressure, the higher number in a blood pressure reading, is measured as your heart muscle contracts. The formula P ≤ 0.5a + 110 gives the normal systolic blood pressure P based on age a (in years).
•Find your normal systolic blood pressure.
•At age 30, does 125 represent a maximum or minimum systolic pressure? Explain.
Tagged with: heart muscle • muscle contracts • systolic blood pressure • systolic pressure
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Let’s say your age (a) = 10
P <= 0.5 * 10 + 110
P <= 5 + 110
P <= 115
Obviously, I don’t know your age. Use that instead of a.
P <= 0.5 * 30 + 110
P <= 15 + 110
P <= 125
Since the maximum allowable systolic BP at age 30 is 125, this is the maximum.