Concept explainers
To calculate:
Number of each type of coin.
Answer to Problem 1P
Number of each type of coin is
Explanation of Solution
Given information:
Barbara has nickels, dimes and quarters worth
Calculation:
Let,
The last equation multiplies by
Substitute for
Solve the equation
Back substitute for finding remaining,
Thus, Number of each type of coin is
Chapter 9 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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