
Concept explainers
To evaluate: The range of miles for Plan B to save money.

Answer to Problem 107E
The range is more than
Explanation of Solution
Given:
The offers for car rent are as follows:
Plan A:
Plan B:
Calculation:
Identify the variables:
It is required to find the range of miles for Plan B to save money. Let the number of miles be x.
Translate from words to algebra:
The number of miles be x.
Daily cost for plan A will be
Daily cost for plan B will be
Set up the model:
Plan B should cost less than plan A for Plan B to save money. That is,
Solve
Thus, the range of miles for Plan B to save money will be when
Therefore, the range is more than
Chapter 1 Solutions
EBK PRECALCULUS: MATHEMATICS FOR CALCUL
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