Concept explainers
(a)
To Write: Equation that gives the total cost as a function of number of miles driven
(a)
Answer to Problem 35PPS
Explanation of Solution
Given information: The rental company charges 50 for the truck and additional fee of 0.55 per mile driven.
Frame equation:Let
Total cost = rate per mile times number of miles plus rental charge
The function to calculate the total cost is,
(b)
To Calculate: The number of miles he drove the truck.
(b)
Answer to Problem 35PPS
Logan drove 142 miles
Explanation of Solution
Given information: The rental company charges 50 for the truck and additional fee of 0.55 per mile driven. The function for total cost is
Calculation:The function to calculate the total cost is,
We need to find the number of miles driven
Substitute 128.10 for
Logan drove 142 miles
Chapter 8 Solutions
Pre-Algebra, Student Edition
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