Remember, at the aquarium, one shrimp is fed 1/5 gram of food each feeding and is fed 3 times each day. 5) Use $$ for number of days and $$ for amount of food in grams that a shrimp eats to write two equations that represent the relationship between $$ and $$.
6) If a tank has 10 shrimp in it, how many grams of food are added to the tank each day?

7) If the aquarium manager has 300 grams of shrimp food for this tank of 10 shrimp, how many days will it last? Explain or show your reasoning.