Edward has 12 coins of the quarter and 8 coins of nickel with him
Total number of coins = 20
The total amount of money = $3.40
Let x represent the number of quarters and y represent the number of nickels
Formulating the equations we get:
x + y = 20-------(1)
0.25x + 0.05y = 3.40
Simplifying by removing the decimals and solving
25x + 5y = 340------(2)
Multiplying equation (1) by 5 and subtracting with equation (2) we get the following:
5x + 5y = 100
25x + 5y = 340
= 20x = 240
x = 12
So, y = 8
So, the number of quarters is 12 and the number of nickels is 8
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