Concept explainers
A coin bank has 250 coins, dimes and quarters, worth $39.25. How many of each type of coin are there?
To find: number of each type of coin present in the coin bank.
Answer to Problem 19P
Therefore 155 dimes and 95 quarters are there in the 250 coin bank.
Explanation of Solution
Given information:
A coin bank has 250 coins, dimes and quarters, worth $39.25.
Calculation: A coin bank has 250 coins, dimes and quarters, worth $39.25. As we know 1 dime is equal to $0.10 and 1 quarters is equal to $0.25.
Let us assume the bank has x number demes and y number of quarters.
Therefore
And
Now solve this equation by elimination method we get,
Therefore
Replace y =95, x can be determine as:
Therefore 155 dimes and 95 quarters are there in the coin bank.
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