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Concept explainers
a.
To calculate: The cost an item that costs one dollar today in next three years.
a.
![Check Mark](/static/check-mark.png)
Answer to Problem 4P
The cost an item that costs one dollar today in next three yearsis
Explanation of Solution
Given information:
The cost of an item today is one dollar and its cost after t years is
Consider the provided statement that cost of an item today is one dollar and its cost after t years is
To evaluate the cost of the item in the next three years, substitute t as 3 in the provided expression,
Thus, the cost an item that costs one dollar today in next three yearsis
b.
To calculate: The cost an item that costs one dollar today in next nine years.
b.
![Check Mark](/static/check-mark.png)
Answer to Problem 4P
The cost an item that costs one dollar today in next nine yearsis
Explanation of Solution
Given information:
The cost of an item today is one dollar and its cost after t years is
Consider the provided statement that cost of an item today is one dollar and its cost after t years is
To evaluate the cost of the item in the next nine years, substitute t as 9 in the provided expression,
Thus, the cost an item that costs one dollar today in next nine yearsis
c.
To calculate: The cost an item that costs one dollar today nine years ago.
c.
![Check Mark](/static/check-mark.png)
Answer to Problem 4P
The cost an item that costs one dollar today nine years agowas
Explanation of Solution
Given information:
The cost of an item today is one dollar and its cost after t years is
Consider the provided statement that cost of an item today is one dollar and its cost after t years is
To evaluate the cost of the item nine years ago, substitute t as
Thus, the cost an item that costs one dollar today nine years agowas
Chapter 7 Solutions
Algebra: Structure And Method, Book 1
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