Concept explainers
a.
To calculate: The cost an item that costs one dollar today in next three years.
a.
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.
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.
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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