Concept explainers
To find: The number of coins.
Answer to Problem 20P
The number of nickels coins is 18 and the number of dime coins is 27.
Explanation of Solution
Given information:
Total number of coins = 45
Value of coins = $ 3.60
Solution:
Let, the number of nickels coins be
By question
Multi ply equation (1) by 1 and equation (2) by 20
Subtract equation (3) from equation (4)
Substitute the value of y in equation (1)
Therefore, the number of nickels coins is 18 and the number of dime coins is 27.
Chapter 9 Solutions
Algebra: Structure And Method, Book 1
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