Concept explainers
a.
To determine the constant of variation.
a.
Answer to Problem 34PPE
Explanation of Solution
Given:
Blood in a person’s body varies directly with the body weight
Person weight 160 lb has 4.6 quarts of blood
Concept used:
Basic algebraic equations
Calculation:
Let’s consider the equation as,
Where,
Substituting the values of
Conclusion:
Therefore, the constant of variation is
b.
To determine the equation that relates quarts of blood to weight.
b.
Answer to Problem 34PPE
Explanation of Solution
Given:
Blood in a person’s body varies directly with the body weight
Person weight 160 lb has 4.6 quarts of blood
Concept used:
Basic algebraic equations
Calculation:
Let’s consider the equation as,
Where,
Substituting the values of
So,
Conclusion:
Therefore, the equation that relates quarts of blood to weight is
c.
To determine the solution from the equation.
c.
Answer to Problem 34PPE
Explanation of Solution
Given:
Blood in a person’s body varies directly with the body weight
Person weight 160 lb has 4.6 quarts of blood
Person weight 175 lb
Concept used:
Basic algebraic equations
Calculation:
Let’s consider the equation as,
Where,
Substituting the values of
So,
Now, when the value of
Value of
Putting the value
Conclusion:
Therefore, the solution from the equation is
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