Answer:
At the aquarium, the dolphins are fed seven buckets of fish each day. The penguins are fed half as much as the dolphins therefore the three and a half buckets of fish each day.
Explanation:
First, the dolphins have 7 buckets of fish a day and the penguins have half.
Second, find the numbers in the problem and x out the useless information.
Third, divide the 7 by 2 (the reason behind dividing by 2 is to get the half of 7)