Concept explainers
a.
To Make: An expression for the width of the rectangular pen.
a.
Answer to Problem 50E
The expression is
Explanation of Solution
Given Information:
The length of rectangular pen
Formula:
Calculation:
Let the width be w feet.
As
Thus by the formula for perimeter,
Dividing by
Transposing
Or
b.
To Make: An expression for the area of the rectangular pen.
b.
Answer to Problem 50E
The expression for the area is
Explanation of Solution
Given Information:
The length of the rectangular pen
Formula used:
Calculation:
For length
Width
So area is given by
This implies, by distributive property
Or
c.
To Evaluate: The width and area of rectangular pen.
c.
Answer to Problem 50E
The width is
Explanation of Solution
Given Information:
The length of the rectangular pen
Calculation:
As found in part (a) and part (b),
Width
Whose length is
Replacing
Width
Area
Chapter 2 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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