There's only one way using no dimes and no pennies.

2 half dollars, 8 quarters, and 40 nickels.

But if you allow pennies, there are lots more ways.  
Here are some:

6 half dollars, 39 nickels, and 5 pennies,

2 half dollars, 10 quarters, 28 nickels and 10 pennies.

6 half dollars, 6 quarters, 3 nickels and 35 pennies.

Edwin