Semester B Exam Part 1

Question

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

Answer 1

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.