Answer:
Using a system of equations, it is found that he has 2 dimes, 5 nickels and 12 pennies.
In the system of equations, I am going to say that:
x is the number of dimes.
y is the number of nickels.
z is the number of pennies.
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Two more nickels than dimes, thus:
Three times as many pennies as nickels, thus:
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A dime is worth $0.1, a nickel is worth $0.05, and a penny is worth $0.01. Total of $0.52, thus:
Solving for x:
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Solving for y and z:
He has 2 dimes, 5 nickels and 12 pennies.