



 
Miriam, First of all I would work in cents rather than dollars. Hence the piggy bank contains 625 cents. Suppose the number of nickels is n, the number of quarters is q and the number of dimes is d. Since a nickel is worth 5 cents, a quarter is worth 25 cents and a dime is worth 10 cents
The problem contains enough information to construct two more equations. Solve the three equations for n, q and d. If you need more help write back,  


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