a.
To write: a function for the value of computer that fits to the given models.
a.
Answer to Problem 48PPE
Explanation of Solution
Given information:
A computer valued at $1500 loses 20% of its value each year.
Since the value of computer decreases every year by 20%, then its value after
b.
To find: the value of computer after 3 years.
b.
Answer to Problem 48PPE
$768
Explanation of Solution
Given information:
A computer valued at $1500 loses 20% of its value each year.
Since value of computer after
Putting
Thus the value of computer after 3 years is $768.
c.
To find: after how many years the value of computer will be less than $500.
c.
Answer to Problem 48PPE
5 years
Explanation of Solution
Given information:
A computer valued at $1500 loses 20% of its value each year.
Since value of computer after
Now the value of computer after 5 years will be
This is less than 500
Hence the value of computer will be less than $500 after 5 years.
Chapter 7 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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