Concept explainers
To find: all possibilities for the number of each type of coin she could have.
Answer to Problem 4P
There is 1 quarter and 17 dimes in the collection.
There is 3 quarter and 12 dimes in the collection.
There is 5 quarter and 7 dimes in the collection.
There is 7 quarter and 2 dimes in the collection.
Explanation of Solution
Given information: Kunberly has $1.95 in dimes and quarters.
Calculation:
Let the number of dimes be x and quarters be y , then the equation of their total value becomes:
Solve for y.
Substitute the value of x = 1 in this equation and solve for y:
There is 1 quarter and 17 dimes in the collection.
Substitute the value of x = 3 in this equation and solve for y:
There is 3 quarter and 12 dimes in the collection.
Substitute the value of x = 5 in this equation and solve for y:
There is 5 quarter and 7 dimes in the collection.
Substitute the value of x = 7 in this equation and solve for y:
There is 7 quarter and 2 dimes in the collection.
Chapter 3 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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