(a) Hans bought 11 pounds of rice for $5.
How many dollars did he pay per pound of rice?
the unit price is given by the total price divided by the total weight, therefore:
[tex]p=\frac{5}{11}=0.45454=0.45[/tex]He payed $0.45 per pound of rice
(b) It takes 16 pounds of seed to completely plant a 3-acre field.
How many pounds of seed are needed per acre?
the pounds of seed per unit area is given by the total pounds used to plant the total acres
[tex]s=\frac{16}{3}=5\frac{1}{3}=5.33[/tex]so, the answer is 5.33 pounds per acre
