To find:The amount invested at
Answer to Problem 29E
The amount invested at
Explanation of Solution
Given information:
The total amount invested is
Calculation:
Let the amount invested at
Write the equation for the total amount invested.
Write the equation for the yearly amount earned.
Solve equation (1) for the value of
Substitute
Substitute
It is clear that the solution of the system of equations is
Therefore, the amount invested at
Chapter 7 Solutions
Precalculus with Limits: A Graphing Approach
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