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To find: a) Graph the relationship between the cost of transportation in dollars and mileage over the entire 960-mile route.
![Check Mark](/static/check-mark.png)
Answer to Problem 53AYU
Solution: a)
Explanation of Solution
Given:
It is given that the trucking company transports goods between Chicago and New York of 960 miles.
The company charges $0.50 per mile for the first 100 miles.
It charges $0.40 per mile for the next 300 miles (100 to 400 miles). Then it charges $0.25 per mile for the next 400 miles (400 to 800 miles) and There is no charge for the remaining 160 miles.
Therefore there will be four limiting conditions for the transport cost x . They are:
1.
2.
3.
4.
For the condition x
As the cost is $0.50 per mile for the first 100 miles, the function becomes
For the condition 100<x=400,
As the cost is$0.40 per mile for next 300 miles, the function becomes
For the condition
As the cost is $0.25 per mile for next 400 miles, the function becomes
For the condition
As there is no cost for next 160 miles, the function becomes
Let the function for the cost be
a)
To find: b) The cost as a function of mileage for hauls between 100 and 400 miles from Chicago.
![Check Mark](/static/check-mark.png)
Answer to Problem 53AYU
Solution:
The cost as a function of mileage for hauls between 100 and 400 miles from Chicago is
Explanation of Solution
Given:
It is given that the trucking company transports goods between Chicago and New York of 960 miles.
The company charges $0.50 per mile for the first 100 miles.
It charges $0.40 per mile for the next 300 miles (100 to 400 miles).
Then it charges $0.25 per mile for the next 400 miles (400 to 800 miles) and
There is no charge for the remaining 160 miles.
Therefore there will be four limiting conditions for the transport cost x . They are:
5.
6.
7.
8.
For the condition
As the cost is $0.50 per mile for the first 100 miles, the function becomes
For the condition
As the cost is $0.40 per mile for next 300 miles, the function becomes
For the condition
As the cost is $0.25 per mile for next 400 miles, the function becomes
For the condition
As there is no cost for next 160 miles, the function becomes
Let the function for the cost be
b)From the derived function, it can be conclude that the cost as a function of mileage for hauls between 100 and 400 miles from Chicago is
To find: c) The cost as a function of mileage for hauls between 400 and 800 miles from Chicago.
![Check Mark](/static/check-mark.png)
Answer to Problem 53AYU
Solution:
c)The cost as a function of mileage for hauls between 400 and 800 miles from Chicago is 70+0.25x.
Explanation of Solution
Given:
It is given that the trucking company transports goods between Chicago and New York of 960 miles.
The company charges$0.50 per mile for the first 100 miles.
It charges $0.40 per mile for the next 300 miles (100 to 400 miles).
Then it charges $0.25 per mile for the next 400 miles (400 to 800 miles) and
There is no charge for the remaining 160 miles.
Therefore there will be four limiting conditions for the transport cost x . They are:
9.
10.
11.
12.
For the condition
As the cost is $0.50 per mile for the first 100 miles, the function becomes
As the cost is $0.40 per mile for next 300 miles, the function becomes
For the condition
As the cost is $0.25 per mile for next 400 miles, the function becomes
For the condition
As there is no cost for next 160 miles, the function becomes
Let the function for the cost be
c) From the derived function, it can be conclude that the cost as a function of mileage for hauls between 400 and 800 miles from Chicago is
Chapter 2 Solutions
Precalculus Enhanced with Graphing Utilities
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Glencoe Math Accelerated, Student Edition
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