Ted made trail mix for the school field trip by mixing together Sushine Mix which costs $2.50 per pound, Fruit Mix which costs $1.50 per pound, and Nut Mix which costs $2 per pound. Ted used twice as much Fruit Mix and half as much Nut Mix as he did Sunshine Mix. How many pounds of each mix did he use if the total cost for all the trail mix was $19.50? Sunshine Mix =

Fruit Mix =

Nut Mix =