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4 years ago

10

Select Equal or Not Equal to correctly classify each statement. Statement Equal Not Equal 14⋅34=?34⋅14 34÷25=?25÷34

1 answer:

STALIN [3.7K]4 years ago

3 0

Hi!

14 • 34 is equal to 34 • 14

34 ÷ 25 is NOT equal to 25 ÷ 34

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3 years ago

The Baker formula estimates the maximum heart rate, in beats per minute, of a person who is

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Step-by-step explanation:

<em>To begin, we know that the formula:</em>

$b(a)=200-0.75a$ Eqn(1).

<u>is equivalent to a linear equation of algebraic form denoted as:</u>

$y=k+mx$ Eqn(2)

<em>as such that Eqns (1) and (2) relate as follow:</em>

$y$ ⇔ $b(a)$ : denoting our Dependent Variable, in this case <em>Max. Heart Rate in Beats Per Minute</em>

$x$ ⇔ $a$ : is our Independent Variable<em>, </em>in this case the <em>Age of the Person</em>

$m$ ⇔ $0.75$ : denoting the<em> Rate of Change of the Age.</em>

$k$ ⇔ $200$ : denoting our <em>Constant.</em>

Now in the question our value of $b(a)$ is given as 188 beats per minute, which by plugging in Eqn(1) gives:

$200-0.75a=188$

from which we can solve to obtain the value of $a$ as follow:

$-0.75a=188-200$ Gather similar terms on each side

$-0.75a=-12\\$ Simplify

$a=\frac{-12}{-0.75}$ Solve for $a$

$a=16$

Which tells us that at the Age of 16, the Max. Heart Rate is 188 Beats Per Minute.

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3 years ago