To sketch: the graph for the system of inequalities that describes the various amounts that can be deposited in each account.
Explanation of Solution
Given:
A person plans to invest up to $20000 in two different interest bearing accounts. Each account must contain at least $5000. The amount in one account is to be at least twice the amount in the other account.
Calculation:
Consider the amount in the smaller account and larger account be
Since, each account is to contain at least $5000.
The total amount in the two accounts should be at most $20000.
The amount in the larger account should be at least twice the amount in the smaller account.
The system of inequalities can be written as,
The graph of the system of inequalities is shown below.
Chapter 7 Solutions
EBK PRECALCULUS W/LIMITS
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