300
After 6 hours: 50 x 2 = 100 pounds
After 12 hours: 100 x 2 = 200 pounds
After 18 hours: 200 x 2 = 400 pounds
Therefore, there will be 400 pounds of algae in the pond after 18 hours.
Semester B Exam Part 1
Suppose that the amount of algae in a pond doubles every 6 hours. If the pond initially contains 50 pounds of algae, how much algae will be in the pond after 18 hours?
(1 point)
Responses
400
400
10,800
10,800
300
300
600
1 answer